HinsGEAR 1 Mode UV 365nm Blacklight Flashlight LED Ultraviolet Flashlights Portable Uv Light Wood's lamp Detector for Dog Urine Pet Stains, Anti-counterfeiting and More - Powered by Single AA Battery

I found they were smaller than expected when I received them. Their sizes were marked, but I guess I am bad at measurements. Nevertheless, they are quite sturdy, so remember to buy aluminum flashlights. Also, these are truly waterproof, probably the best compared to many similar models. For a mini flashlight, I think the zoomable kit is unnecessary. I don't know who would use the focus light, not me anyway. The brightness is OK in the first gear, but the second gear is too weak and has no usefulness whatsoever. Pros 1) Brightness - ★★★★ The first gear is very bright and I am satisfied with it. But the second gear is too weak, you better ignore that and use the first gear floodlight only. 2) Waterproof - ★★★★★ Authentic IPX5 class waterproof has no problem in the water within minutes. 3) Material - ★★★★★ These are made of aluminum alloy, not those plastic junks. 4) Cost performance - ★★★★★ Not the best flashlight, but worth its money. 5) Workmanship - ★★★★ The flashlight itself is quite solid, and the clip is tough, but it does feel a little bit smaller than I thought it would be. Cons 1) Zoomable design - ★★★ For a mini flashlight with such a small size, it's not necessary. 2) Battery alternative - ★★★ The 14500 option isn't particularly convenient to get. They probably are better compared to other similar models, and there are just too many of them on the market that are exaggeratedly advertised but turn out to be junk. Overall, I would say this is a good set, and worth the money you spend.

Camping, hiking, around the house, working on your vehicle, you name it, these flashlights are great buddies to have! in the way. The quality is fantastic. Feels durable The LED performs very well for brightness. It can zoom and adjust to the light setting that you need. If you need the LED narrowed for a specific item, you can extend the flashlight to narrow the beam. If you need to expand the field of view, simply slide it closed. On the narrow beam mode, I was able to light up a hill that is about 500 feet away from me with ease and precision. Well worth the price!

These flashlights are SO lightweight. I love how light they are as opposed to those heavier ones. They are also extremely bright and I love how you can adjust the size of the spotlight and the lower/SOS setting. The only downside is the clip breaks very easily and since it’s metal, it is sharp and requires a very small hex-screwdriver to remove it.

We bought these for camping just as a cheap decent flashlight and was blown away with how awesome they work! They are small but definitely light up the area. They have where it can be one spot or wide range lit and small enough the kids can hold them with ease!

Excellent value; comes out to around $4.50 per flashlight even with $7 shipping and tax. Despite small size, it is the brightest flashlight I’ve owned and works well; zoom function is convenient for a more focused, small beam. Worth noting that this one runs on 3 AAA batteries though, not 1 AA battery.

I purchased the pair of 365nm UV flashlights to use with fluorescent minerals (e.g. fluorite). I have some UV flashlights that emit at 395nm, so I used them as my reference. The 365nm lights were very dim compared to the 395nm lights and barely induced any fluorescence in any of several samples. They also failed to get a much of a response from white paper (which has UV whiteners added) vs the 395nm lights which caused a dramatic glow. I own many white light flashlights which use the same case as the 365nm lights and I suspect that the plastic lens used is absorbing much of the UV light, but I can't prove this as I don't have any measurement instrumentation to test. To get acceptable transmission at 365nm, one would have to use a special UV transparent (UVT) acrylic or an expensive quartz lens ($$$$).

While these flashlights are not the brightest or most amazing lights out there for their price they are great. I got them for my kids for a camping trip and running off AA batteries they lasted all weekend with the kids playing with them. They are plenty bright enough for general use and seem to be quite durable. Their small size make them easy to keep pretty much anywhere. If you want a bunch of flashlights for emergencies these would be a great option to keep in every room of the house.

The lights are very bright and the different settings are helpful. The zoom feature is nice and they function well at first. My only issue is they don’t hold up. We use them a lot while taking the dogs out at night and daily use is too much for these.