I have a UV laser pointer (from LazerShirts.com) which is pretty damn cool, but there are times when having a wide spread of UV light can be very useful for identifying a variety of materials as well as spotting scorpions, hidden UV ink messages and giving a low-impact tracking tool if you have the right markers... More on that later.
Jenyx UV light from Jil Lite features a 2-chip controlled LED emitter producing 80 Lumens at 400nm. The light is powered by a single AA battery, and has a reported burn-time of 3 hours, with a constant brightness control circuit built in to ensure a steady beam.
The light distribution is quite good, with a room filling "orange-peel" aluminium reflector, behind the B270 optical glass AR coated on both sides lens. The entire unit is housed ay 6061 aircraft aluminium, giving a very sturdy little package. Activation is by tail-cap clicky button, which is inset below the butt-end of the housing, with a lanyard hole built in. Water resistance is achieved with o-rings, but the model is not dive-rated.I like the removable steel pocket clip as well, always good to have that as option.
I was able to take some pictures with my iPhone and was very happy with the intensity and reach of the light, illuminating my rather staggering NERF collection, as well as the "Toxic Green" handles of my KA-BAR Zombie Killer knives . UV lights are also very powerful chargers of glow-in-the-dark items such as Ranger Eyes and my SAR Moon Glow disk. It also picked out the green paracord that shipped with my Fishbones and Piranhas as well as the orange paracord I use as well.
UV ink such as found in highlighters, or in anti-counterfeiting can act as a tracking or messaging system. UV reactive paracord or even NERF darts can act as inexpensive "breadcrumbs" to mark a trail, an alternative to IR or other "your-eyes-only" methods.
This is a cool little torch, and I'm enjoying having it on hand to charge my glowies, and to spot new UV reactive materials I come across in my adventures.