GKG UV Flashlight Black Light, 2Pack 395nm Flashlight with 3 Light Modes & Zoom Function, Mini Black Light - Pet Urine and Stains Detector

I needed a UV light to see the scorpions on the hiking trails at night, and this tiny flash light did the trick. Very robust and well made.

This is a review of the 2-pack GKG scorpion UV flashlight. These are small (about 3 inches long) flashlights with a metal barrel. They are surprisingly heavy given their size. They have an orange rubber button on one end. They have three modes, one of which is constant, one of which flashes quickly and the final one is a bit dim. The light source seems to be an LED and it is bright. They are powered by a single AA battery.If you like to check the "lume' on your watch, look for scorpions, make a G&T look really flashy, or anything else where a dose of UV, or blacklight is needed, then these are a great buy.

These are just one step up from being penlight flashlights. They are very tiny! This wasn't indicated in the product description. On the positive side, they only require one AAA battery so in that sense they're cost-effective. They give about as much light as you would expect from one AAA battery. I gave 5 stars for durability because they're metal, but it remains to be seen how long they hold up.

I should qualify this - the first delivery of two had one defective (stuck in "low mode") after using (1) EverReady AA Lithium battery able to cycle only once through all 3 settings. I contacted the company and they sent me another (2) set replacement via (2) day. I did send them back the defective one (for post-mortem, if they wish) to a North Las Vegas NV address. Absolutely no complaints (yet) for the ones I have now. The sliding beam focus is nice (wish other "white LED" had this feature); beam varies between Focus of interlocked "fingers" of the LED to a spread out beam in in High/Low/Flash mode. It does appear to UV (though I have no way of measuring the wavelength) as it lights up white & fluorescent colors around my house. It does show reflections from my (now clean) toilet bowl outside, and other "white-ish" stuff. Industrial construction (except for the tailcap maybe - we'll see). If this were available in a IR/LED/UV multi-mode flashlight, that would be awesome (I seeked, but could not find). Great Deal

Great for using on glow in the dark dog toys. My only complaint is that they cycle through modes every time you turn on and off. I know they are supposed to do that, but have since found it to be annoying as I always just want the high setting for my application.I wish that maybe they could stay in the same mode if they were off for say 10+ seconds and only changed modes if turned off and on in rapid succession.