Review: Fenix HL35 headlamp

First seen on Breach Bang&Clear here ...

My pal Sean from G8 sent me a pre-release Fenix HL35 LED headlamp to review, which was awesome to have happen, and very timely for us here.
I've covered a number of Fenix lights previously, from the unusually designed TK51, to the mighty LD60 and the very handy E99Ti keychain light to the very practical domed CL20 camp lantern. The HL35 is the next iteration of the existing Fenix headlamp range, and whist some of the stats are still unpublished, here's what I can tell you.



It is an aluminium housed, high performance headlamp boasting three levels of light from the main LED (assuming similar stats to the HL25 a maximum of 4/50/280 lumens while in burst mode, and a 223ft beam distance). A second, red LED is built in as well, and the selection button on the side of the housing cylinder next to the power button. You cycle through the four modes once the light is on with this. 1) steady white light (cycle through power setting with power button), 2) steady red light, 3) slow flashing white light 4) fast flashing red light. The main light is cycled through its three settings by pressing the power button, once lit and both LED's are shut off by holding the power button down. Holding the Mode button down will cause the light to come up on its maximum setting, before allowing you to cycle through the modes. The lamp is fitted in a bezel and is rotatable 60 degrees in the front, with a nice sturdy ratchet action, and well crenelated ends to facilitate the turn.

Built to resist the elements, the HL35 is waterproof to 2m, impact resistant at 1m and incursion protected to an IPX-8 rating. The HL35 is powered by 2 AA batteries.

The HL35 measures 66mm (3.2") wide, 45mm (1.8") "deep", and weighs about 90g (3.2oz) so it's remarkably dense, but not too weighty. the around the head and over the crown elastic headbands. These are usually the part of headlamps that I like the least; that the lamp part either flops around or the band is awkward. The HL35 is very stable, with a thin closed cell foam pad holding it in place and adding some comforting padding and the elastic is adjustable both in circumference and over the top.




One thing about the lamp, the two buttons are a little differentiate, especially with gloves on. I was rummaging in a dark nasty place this week, and needed to not bring too much attention to myself (don't ask, but I have a strong stomach), and it was tricky to select the right option with the gloves I had on. Working out which button was the power, and would let me alternate the three light levels, and which was the mode button, and inadvertently set me to strobing, was a problem.  I feel that even with the mode button being stippled, and a bit larger, the fact that they are both side-by side makes that tricky, especially when gloved.

That said, it's the first headlamp I've had where I didn't cringe at having to put on and use, the light was crisp and well cast, and it was comfortable to wear. If you're in the market, it would be well worth a look in.

Review: BioLite thermoelectric stove

I finally laid hands on one of these, the BioLite thermoelectric power generation stove and have had some fun trying it out. I've covered these before, in a WishLust post, so I was really happy when a good deal came my way.

The general principle is this: a steel pot, an inner layer with air-holes, a protective outer mesh to prevent accidental contact with the hot pot, built in folding legs, and an attachable, thermocouple driven, high-capacity battery, with both USB output and an internal fan to drive the fire.

The fire output is measured as 3.4 kW (at low power with the fan) and 5.5 kW (With the fan at high power). I haven't yet timed it, but BioLite state that it takes as little as 4.5 minutes to boil 1 liter of water, but obviously boiling times vary by strength of fire, which then comes back to the quality of the fuel used.

Officially, 46g (1.6 oz) of wood to boil 1 liter of water, when I used it, I simply chopped up a fistful of wood, and fed it in, feeding as it went. One thing to note is that with a small combustion pot, you need to feed it regularly, as it burns down rapidly, more so if the fan is set to high.

The varnished pine ex-furniture I was using here went up like a candle, but I expect that denser, or damper wood to burn a bit lower and slower. Charcoal would be an ideal fuel, but anything form hay (which I used to light it) to paper and cardboard, twigs, pinecones, whatever, would do. If you have the fire going, and can fit the solid fuel into the firepot, it will probably work.


The output of the USB varied, with the intensity of the fire, but is documented as 2W @5V at a continuous burn, and a peak output of 4W @5V. This in turn gives a phone such as the iPhone 4S (2G) 20 minutes of charging provides 60 minutes of talk time.

As with the boil times, charging times would vary by device and by the strength of the fire.

I really like how by clever design the fan/charging pod, fits neatly into the fire pot, with the thermocouple poking out.

When packed, its 21cm (8.25") tall, and 13cm (5") around, and weighs only 930g (33 oz).

The triangular trivet which clips over the scalloped triangular metal lip provides extra security for placing pots or cups on the top, for cooking, water sterilizing, or what-have-you, doesn't clip nicely back onto the lip when the charging pod is stored, but the whole package comes with a nylon drawstring bag, so you're covered.

The USB port is nicely fitted, and covered by a silicone flap which keeps it drip, splatter and ash-free when not in use. The external honeycomb grill shields you from direct burns, but still heats up pretty swiftly, so don't try picking it up once burning.

I look forwards to coupling this with my newly-replaced PowerPot XL and doubling the off-grid charging and powering that I can offer my camp-site.

If the little BioLite looks a bit small for your needs, they also make these jumbo versions too, the BaseCamp.

Wish-Lust: Fogo Adventure Gadget: GPS+Flashlight+Walkie Talkie+Charger

[EDIT: Promo-code to get 10% discount on their store!]
[EDIT: another 10% code .... ]

I do love my Kickstarter projects, my flashlights, and alternate power sources,  so when the Fogo project came up, I jumped right onto it. Alas, its first iteration didnt make the target goal, but the Fogo team have gone bak to he drawing board, and have come back with a second version, which looks to be going strong.

I wanted to give you all my thoughts on it, because I think it has some real potential, but needs some explanation before you go right in and back it. Caveat Emptor.

The base level light has a programmable flashlight, USB charger, accelerometer, digital compass and a charging system for other devices.

I've covered a multi-functional flashlight before, in the Hexbright FLEX and charging systems like the Snow Lizard SLXtreme case but the Fogo has a few more built in features that sets it apart.
 
Constructed predominantly of Type III Hard Anodized 6061 aluminum for the body, end cap, and bezel, with an acrylic lens protector, and a polycarbonate protector for the built in 168x144 crisp, low power LCD screen (with backlight), and all together holds a IPX7 Waterproof rating.

It measures 14cm (5.56") x 4.5cm (1.78") in diameter and weighs 285g (10oz) when fully loaded up with the twin 18650 protected Li-Ion batteries (up to 3400mAh each).
The USB Charger which has a 1.8A at 5V output power (Micro USB OTG Adapter required for charging external devices) allows charging of up to 1.8A.

The really interesting features that the Fogo can have added are a  Bluetooth connection, GPS circuitry, Walkie-Talkie Smartcap and Text Messaging over radio.

The Radio cap offers a wireless network between other Fogo users allowing you to send digital voice and text messages, including GPS data such as waypoints, as well as real-time communication from 1.6 to 11.2km, depending on terrain.

The Text-Messaging-Over Radio option requires the Radio-Tail-Cap option in order to work, so be sure to bear that in mind when building your own, and you need two of them to communicate like this.

I haven't gone as far as pledging for those upgrades, because I unfortunately don't have the funds to put in for two or more complete models, but I can see the appeal of off-cell-grid communications in a rugged an easy to use unit like these.

For my money, I'm looking forwards to the Kickstarter to surpass its Stretch Goal of $80k to achieve an upgrade of the Cree LED's. The higher efficiency XP-L outputs up to 1226 lumens compared to 1058 for the XM-L2. Plus the XP-L gives the Fogo a 10% improvement in battery life.

With its Battery Voltage, Current, and State of Charge sensors, automatic light control to save battery life and protect your night vision (point to the ground for dim and far away for bright)  and off-course notification, the Fogo is a pretty advanced flashlight on its own. With the addition of the GPS and bluetooth options, and being able to track your speed, distance, elevation, rate of ascent/decent and see your stats on the Fogo or download them for later use, tracking your heart rate or cadence or even use the crash detection feature which alerts nearby Fogos (if any) of your situation. It's a pretty special system, all told.

I hope it gets picked up widely, it would be good to see it out there getting its full exposure and coverage.

[EDIT: Promo-code to get 10% discount on their store!]
[EDIT: another 10% code .... ] 

Wish Lust: Beacon- Waterproof,Solar Power Bank,Light and Signal Device

This is mostly a summary of published materials, for a cool piece of tech that I saw come up on Kickstarter, and wanted to pass along to you all, especially in light of my most recent camping adventures where we managed to keep most of our personal technology and lighting charged by a combination of solar and thermoelectric sources.

Smith & Bradley, the maker of tactical and sport watches representing three successful Kickstarter campaigns, has launched its fourth Kickstarter project, The Beacon is a unique outdoor survival box combining waterproof storage for electronics, solar charging, and LED beacon signaling. Enclosed in a light and rugged, efficiently sized package, the Beacon unleashes the power of solar energy to not only charge, but protect, electronic devices. Further, true to its name, the Beacon comes equipped LED lighting for both emergency situations and casual use as well.

These lights are not after-thought add-on's, but rather first rate lighting solutions.

The entire package is crush-proof, waterproof, submersible, and floats even with an electronic device enclosed.The Beacon represents a first-of-its-kind combination of charging, solar, lighting, and waterproof technology. The Beacon allows for storage of two typical mobile phones, contains 3 USB charging ports that can all be used at same time, and a Polymer lithium ion battery. The battery is charged either by traditional wall socket charging or through the Beacon’s high capacity solar panel on the top of the case. The Beacon goes beyond a mere gadget, or drugstore charger. It is a tool that is an absolute necessity for anyone who ventures outside of the urban jungle.
The Beacon is 17cm (6 3/4") x 11cm (4.5") and 5cm (2") thick The interior storage compartment is 27mm (1.06") deep. The Beacon weighs just 15 ounces The Beacon is fully waterproof and is designed to float either empty or with a device enclosed with a device on board.

As a sustainable solar energy source, the Beacon has a fully-enclosed and waterproof solar panel on the lid of the device. Depending on the amount of sunlight, the Beacon's 1.5 w solar panel can provide a full charge to the unit in 36 hours with a 17% conversion rate-meaning that and average iPhone will charge from zero in an hour and a half.
The Beacon may also be charged by a conventional wall outlet The Beacon uses a Polymer Lithium Ion battery to operate the lights and to charge electronic devices and has a 10,000 mAh rating.

 The top of the Beacon is fitted with 12 White High intensity LED lights and 8 yellow hue, low-intensity lights to retain adequate night vision and retain more charge. (TESTED visibility up to 1 mile in blinking mode). As to charging, the Beacon is equipped with three USB charging ports for phones and tablets.
The USB interfaces include 2 ports which are 5v 1.0A and, 1 port 5v 2.1A and the Beacon's built-in battery life indicator shows charge at 25% 50% 75% 100%.

So, it's a fairly well thought out device, I like that it can store and charge two devices simultaniously, securely, safe from both water and other environmental hazards.

Review: Fenix CL20 camp lantern

Whilst I was looking for a replacement for my lost Fenix TK51, (finally settling on the most excellent LD60) I also saw the newly released CL20 camp lantern that Fenix have put out. Sean from G8 Distribution was kind enough to send one to me one to trial.

The CL20 Camp Lantern weighs in at 100g (3.6oz) excluding batteries, and 8cm (3.1") length x 4.5cm (1.8") width x 6cm (2.3") high, making it pocket sized,and its rounded shape makes it ideal for stuffing into a pack, or pocket, and not having to worry about sharp edges jabbing you or your gear. That rounded dome houses a multifaceted internal coating, which coupled with the neutral white Cree LED, gives a very gentle light, making it easy on the eye, even at the maximum settings.
As with all of the Fenix lights I've used, the output is digitally regulated, maintaining constant brightness levels regardless of battery life and includes reverse polarity protection to protect from improper battery installation. The CL20 will take either a pair of AA's, or a single CR123A, giving you a range of power options for better.

A push button control on the side steps up from the lowest setting, 8 lumen, then on to 50, 100 and finally the maximum of 165 lumen. At this setting, it casts a 10m glow, perfect for tents and work areas. a double-press of the button when off turns on a second LED, in red, and supplies a 1.5 lumen glow, enough for navigating around a dark enclosure, or finding your way along a path, but not so much as to dazzle you out of your night vision.

The most exciting features of the lantern apart from its great ergonomics are that the red LED also has a "SOS" style flashing mode, accessible by toggling the button again when on red-LED mode. The other great features are the attachment options.

A metal ring attached to the middle of the lanterns base gives you tent hook attachment, as well as acting as a latch to access the battery compartment. Beside the metal ring, on either side, are two rare-earth magnets which gives you ferromagnetic attachment options. I've now hung mine from a shower hook, stuck it to frame of my car, the wall of a shed and to the bolt holding up my Ikea Gorm shelves.

With an IPX-6 waterproofing rating (heavy rain and brief submersion) and a 1.5m drop rating, this little light is both rugged and useful. I can imagine it becoming a standard addition to my camping kit, but also to my car tool-kit, and also as part of my black-out recovery kit.

Full power white LED in a dark room

Red LED in a dark room

Review: Fenix - E99Ti light

I really enjoy flashlights (torches, they call them here), and if it's not a knife, a pouch or packs that arrives in the mail, its likely to be a torch of some kind. My first Fenix torch was the TK-51, which I got following meeting their CEO and VP at the SSAA SHOT Show. I was fairly devastated when a fortnight or so ago, my car got broken into, and one of the things I lost was the TK-51. I had the majority of my performance lights in the car that night, and was left somewhat in the dark as a result.

Thankfully, I had recently received this little beauty in the mail, having won a competition with Fenix Worldwide. This is their Limited Edition E99 Ti.


The E series is for EDC, where the TK is for Tactical. This light does the job perfectly. At just 6.6cm long, and 1.5cm in diameter, it is only marginally bigger than the AA battery it is powered by. It is machined from two pieces of alpha titanium4 alloy, this unit weighs just 18g (0.6oz) without the battery in it.

It comes with a flatish flanged base, and a lanyard hole drilled into one of the flanges. I quickly added it to my keychain of goodies and it's ridden in my pocket ever since.

4 lumen - low, 3m outdoors

4 lumen - low, 3m room

The Cree XP-E2 LED has a lifespan of 50,000 hours, and the digitally maintained brightness circuit ensures constant brightness. The cool thing with this light is that it has three settings, activated by the screw-to light top of the light. a 1/6th turn of the head is enough to trigger the light, and by selectively turning it on and off again, in a 2-second window, the light steps up from a subdued 4 lumen, to a mild 27 lumen, and up to its maximum 100 lumen output.

27 lumen - medium, 3m room

27 lumen - medium, 3m outdoors

100 lumen - high, 3m outdoors

Capable of standing up securely on a flat surface to serve as a candle, and able to cast to a maximum of 41m, which is not small feat for a single AA light, the E99 offers a 420candlepower maximum intensity. That's a whole lot of light. It comes at a cost though, at maximum brightness, you only get 50 minutes tops, at medium 4 1/4 hours, and somewhere between 28-30 hours at the lowest setting.  The twist-to use and change feature took a little getting used to, but it is stable, and robust.

100 lumen - high, 3m room

 Again, that's still a lot of light for such a small package. It dies get hot after not long on the 100 lumen setting, and a built in drop-down to medium after about 3 minutes is built in, for safety. Drop safe to1m (table height) and water resistant (IPX-8 rated) to 2 m this light will take the bumps and dunks that you might expect to just be able to shake off yourself too. I imagine it would take a fair bit more abuse, but given that it lives in my right front pocket, I will try to avoid testing that too heavily.

Review: Power Practical - PowerPotXL

Another Kickstarted project, another power generating project and addition to my off-grid arsenal.

This is a second generation thermoelectric device, that was launched as a Kickstarter in order to get the new models out there. These are the PowerPot X from Power Practical and I really liked it.

I've covered the charge-indicating power regulator from Power Practical previously, a USB dongle that indicated the wattage being output by power sources, (or conversely, the draw). I've also covered a thermoelectric generator before, in the form of the Tellurex tPod tea-light candle powered light/charger. I also wish-lusted the BioLite camp stove too, but haven't laid hands on one yet.

The PowerPot X is a sleek 10-watt generator that converts heat into electrical power. It works by housing a thermoelectric module between the base of the regular pot, and an aluminium base-plate. The modules are encased in weatherproof high temp silicone casing  Just heat up water in the pot and the PowerPot  will immediately start putting out electricity to power or charge your devices.

The smaller first-generation PowerPot V, only has a 1 amp output, but the X can push up to 2 amps, sufficient to charge larger and more power hungry devices like iPads and SLR batteries. 

The X ships with a standard USB (5V) port, and comes supplies with one of Power Practical's three-headed adapter cables (mini, micro and 30-pin). The detachable cable has a one-way-only connector to the body of the pot for safety, and three-feet of highly durable, flame-resistant cabling.  Built into the USB end of the cable is a solid-state voltage regulator provides safe and stable power at up to 10 Watts charge any number of small high-tech devices.


The PowerPot X comes in two sizes, the X is 2.3L (3 qrt) and the XL (which I selected, because bigger) is 3.8 L (4 qrt), each having the same kind of hard-anodized aluminium pot, with folding handles. The XL measures 19cm x 13cm (7.5" x 5"), and weighs 770g (11.2 oz) . Not bad for an output of 10w, 2amp, 5V as infinate as your water and heat source.

That's one thing to note. You can't run it dry, or the thermocouple will get fried. I've run mine on both an electric hotplate and by gas, both on the home stage, and also a propane BBQ plate, to remarkable success. Whilst out camping recently, we charged a number of iPhones and iPads, in fairly short order.



The size of the pot allowed me to boil 5 cobs of corn at a time as well as charging. This could be used at each meal-time to top up devices, recharge lights and batteries. As long as you have water to act as your thermal mass, and fuel to heat it, the Power Pot is a never-ending source of electricity in a lightweight and dual purpose package.

I almost look forwards to our next power outage, so I can dazzle the neighborhood with my awesome power.

Review: Power Practical - Practical Meter

Here's a very cool gadget that I backed via Kickstarter, and have added to my mobile power ensemble. I've previously covered power generating thermo-electric systems such as Tellurex tPod1
and the bioLite power generating campstove as well as some options for going solar.

I've also covered a couple of power units, such as the Snow Lizard SLXtreme-5 iPhone case and the Power Travellers Power Gorilla.


This is the Practical Meter which is a clever little in-line USB unit, which gives you a visual means of determining the power usage and output. The LED's built in give an indication of the number of Watts (0-10W, 0-2A) that is being drawn to a given device. This display is in two stages, blue LED's lighting up for 1-5W, and then with the flashing red LED indicating 6-10W.

This level of resolution enables the user to customise the output, either by adjusting cables for better USB version, or the power source. For example, with solar collectors, it would be possible to adjust the angle of the panel to catch the maximum solar output. The same would stand for a thermo-electric generator, or any USB source combination.


Having an adjustable and monitoriable source of power means that a survivor can tailor their resources to best serve their needs in the event of being cut off from reliable mains power. Whether it is solar, fire or from a variety of battery sources, with an item like the Practical Meter, you can at least see what you are getting. It's not a robust piece of tech, so needs to be treated with more care than a ruggedised piece of bug-out kit, but at 12g (0.4oz) it's a great value piece of tech to add to your "power-pack pack".

Review: Snow Lizard - SLXtreme 5 iPhone case

Attentive readers may recall the Kickstarter for the rugged, batter and solar powered phone case, the SLXtreme that I covered a while ago. You may also recall how I took it on the Tough Mudder twice last year but it didn't survive the second attempt.

The hinge cracked and I had some water leakage into the unit, temporarily shorting out my phone, and killing the unit. I was sad, because it was otherwise a great piece of kit, but I also realised that I had put it through a pretty arduous test for a phone case.
However, undaunted, when I saw that Snow Lizard had gone on to make a case for the iPhone 5 (which I had subsequently upgraded to) I got in touch with them to let them know that I was keen to put it through its paces, and they kindly sent me a replacement, in the form of the new and improved SLXtreme 5. In safety orange no less.

It features all the same aspects as the previous model: latch-locking top opening, press-button battery-check and solar power switch, 2,550 mAh battery, membrane speaker

and mic covers, rugged buttons for volume and "home" buttons, a lanyard loop, capacitive touch-screen membrane.  It also sports a thumb-screw bottom sealing latch, and an access port for both USB charging and for the headphone jack. Forward and read-facing camera ports allows for photo and video capture and selfies.

There had been significant improvements as well.The in-built battery is 550 mAh larger in capacity over the "4" version.

 The bottom access port is now tool-free access (even though previously all you needed was a coin), the main latch is now a two-part metal, rather than polycarbonate.

The most exciting new feature however was the headphone jack socket and adapter. With an o-ring sealed plug, and matching sealed adapter, it is possible to have the phone safely cocooned and waterproof, as well as having access to headphone and mic jacks, a feature I've missed since my yellow Walkman days

As with the previous model, the SLXtreme 5 is rated at IP-68 with an operational depth of two meters, so in theory you can take SLXtreme anytime you are in or around water. It doesn't float, however, so I kept mine well attached to myself with a lanyard of paracord. This "open" shot gives you an idea of the engineering used in this cases creation, and it certainly paid off.

having access to the USB port (not the Lightning port of the phone, mind) allows you to charge the phone and its built in battery, but not synch, as far as I can tell.

The main port includes optically clear and easy to clean lenses, padding and improved closing latches, as well as hinges, substantially stronger in design than the previous model, I was pleased to see.


The solar panel was also improved, with a more matte finish to the surface, and what looked to be improved collector crystals internally.


The finish and the feel of the case as a whole was a lot more refined, and with the extra metal hardware, and the changes to the bottom panel, I was really impressed with the design improvements the Snow Lizard team had put into the next model.

When I took the plunge, (so to speak), and took my phone in its new case into the warm waters of Fiji, I knew I was going to give it a good test. With its "2m" depth rating, I was trepidatious  about how it would survive the trip, but as you can see, it worked wonderfully.
I had to remind myself a few times to use the buttons to control photo operation, as the main screen doesn't work under water, but I was able to switch between still and video controls on the surface easily enough, with just a flick of the wrist to clear water from the surface.

I found that the edges were a little tight, when dealing with water droplets, for dexterous screen manipulation, but the macro-control I needed worked just fine. The phone was bone-dry after almost an hour in the water (and subsequent jet-ski back to the resort), and the footage turned out really well.

All in all, I am thoroughly pleased with my replacement SLXtreme 5 case, and would highly recommend them to anyone who wanted to do some wet and wild filming, mapping, long distance phone calls and catching up on your favorite Apocalypse Equippedness blog from a beach-side or mountain-top retreat with their trusty iPhone.

Review: Fenix - TK-51 light

I had the good fortune to be introduced to Braent Hong,
Asia Pacific Sales Manager for Fenixlight Limited at the SSAA SHOT Expo by my friends at LEGear Australia and made an impression about my love of all things lighting.

He recommended I contact their marketing department, and sign up to be a beta-tester, and after many month of negotiations, I received this pre-release TK-51 model light. This is a BIG light, and it certainly performs.Here it is stacked against the HexBright crowd-funded light, I have covered previously.

Let me tell you about the TK-51 ....
At 18.8cm (7.4") long and having a grip diameter of 4.8 cm (1.9"), and weighing 430g without the batteries, this is quite a serious hand held light. At the buisness end, it features two  Cree XM-L 2 (U2) LED's, in a tear-drop configuration of reflectors.

The body of the light is made of machined aircraft alumiunium, Type III hard-anodized and features a toughened and anti-reflective coated glass facing. The two Cree LED's sit in differing reflectors, one large and deep, the other quite shallow. Both reflectors were mirror finished. The glass was in-set from a smooth lip.

The tail-cap was crenelated, and two of the opposing crenelations feature a strap hole for securing a lanyard. The tail cap unscrews to expose the battery holder, which is well labeled to ensure that not only the battery holder, but the batteries themselves are properly loaded, avoiding any misloads.

Speaking of batteries, it is designed to take three 3.7V Li-ion 18650 batteries, which for those who don't know are the big-brother of the CR-123A batteries becoming so prevalent in the resilient gear market. It will also take six of the CR123A's in place of the 18650's, and even the 3.2V 16340. In the absence of a full load, it will even operate with one or two batteries alone, but at much reduced performance.


the TK-51 has some interesting controls, with individual controls for the spot and flood LED's, which ramp up from Low, to Medium, Medium-high and High modes, each accessible by a tap of the appropriate control. It also features a memory, such that the on/off button will recall the previous settings for both LED's. Momentary Strobe can be produced at any time by holding either LED controller, and cycles between two distinct flash frequencies. Momentary "TURBO" mode is achieved by depressing the on/off button, and gives full power to both LED's. Which is a LOT.

Each LED has a Lumen output of 10, 150, 400 and 900. This effectively ramps up with a button press for each LED control, offering considerable control of light output for the user, given their need. with a Single LED runtime, running from 420h at Low for a single LED, to 1h 45min for both LED on high, there is also considerable operational variety. I found that the buttons were perhaps -too- easy to press, being raised from the surface, and had a very light pressure needed to activate.

Fenix state the beam distance is effective to 425m, with a peak beam intensity of 45200 cd. Put simply, it packs a whole lot of light, and can throw it a long way.

This shot is of the TK-51 with both LED's at high, in TURBO mode, putting out 1800 lumen, and lighting up my whole street. I angled the spot down, so as not to side-blind passing cars at the end of the road.

Low Flood

Low Spot

The low flood and spot were hard to catch on my iPhone 5s, but the reflective paint of my old car glinted well enough, remember, this is 10 lumen

Medium Flood

Medium Spot

The medium options, at 150 lumen match most over the counter service station and supermarket lights that I've had. My trusty "household blackout light", the 5.11 ATAC-A1 is only 103 lumen (but off a single AA) .

Medium High Flood

Medium High Spot

At Medium High, the TK-51 is putting out 400 lumen from each LED, doubling that of my CR123A powered Surefire 6pX.

High Flood

High Spot

At High, the LED's are outputting 900 lumen, which even outstrips my HexBright FLEX, and is just shy of my new car headlights. On top of that, the built in circuitry has both output lock-out, meaning that it will produce the same light output for as long as the charge allows, then drop to the next level, and so on, rather than dimming gradually. At the lowest power levels, the light will blink its LED's three times as a last-ditch indicator of power loss. There is also overheat protection, which down-shifts the output until the light cools. During my use if the light, the finely machined texture on the grip was good in the hand, and the light had surprisingly good balance. I hate to think what it would feel like wielded in anger.

Combined with the mass of the light, its 1m shock resistance, and IPX-8 (2m) water resistance, this is a serious light, for serious use. I bought rechargeable batteries for it, and a charger, which comes wit ha car-adapter, which I think will greatly expand the use I get from this light. Now to find a pouch for it!