KeyUnity KF00 Titanium Mini Keychain LED Flashlight, 15 Lumens Waterproof Electric Torch Light Handheld Size Single Mode for Camping, Hiking, Climbing, Fishing, Backpacking (KF00 Sandblasted)

Perfect for storing inside a hollow handle knife. Along with other ttems

Great small 1 AAA battery light. Only one brightness but for the money and the size and seeming quality it is a great little torch.

Great if you want lightweight but not plastic. Super solid construction. Recommend unscrewing all or most of the way and sweeping off manufacturing debris from the threads for smoother operation (present on all 3 I bought). It's not that bright but for the size it's fine. It doesn't fit directly on a keyring so you'll need to hang it from something don't forget or overlook.

Light and bright, it suits me very well. I have relied on a pocket knife with a light for many years, but this is better because it's much brighter and I don't have to apply constant pressure with my thumb. I also switched to a knife / fingernail clipper combo and I am happy.

It is exactly what was described. Bright and easy to use. Would recommend.

The KF03 build quality is great. Small size and light weight. Smooth turning action. Very bright for the size. I believe at this size this is the best keychain light on the market. I wish these were USB-C rechargeable and had two brightness settings but you won't find that on a light this small as of the writing of this review.I also have a KF00 which is the smaller, less-bright version of the KF03. The first KF00 I received was faulty and I could only get it to flash on about a quarter second at a time if I turned it just right but the replacement worked fine. Acceptable failure in my opinion since I've now purchased about 10 different products from this company and this was the only defect.

Because of its size, it takes a little practice, but it works beautifully!

Tried spare batteries also tried new energizer ones. It’s dead. Garbage