This Anker LC90 is really good for the money. Great Flashlight...but more importantly you can run it as a bike light using the mount recommended in another post just below. I had to shim it with a small piece of plastic from a milk carton but it worked out great. Its a bit larger and heavier than your normal small pocket LED flashlight but its SUPER bright and works really well on the bike. You will surely be seen with this thing. Verdict: Recommended. Link: https://www.amazon.com/Anker-Tactical-Flashlight-Rechargeable-Water-Resistant/dp/B01KH2JP5G
Here are items i recommend which i have owned, use constantly and seem well built. Or.....which I dont recommend and that are dumb garbage to be avoided