Trustfire D2R

Small, bright. 3 modes; low, high, and flash. My first one I ordered nearly a year ago for $14, the second ordered a couple months back was $20. They run about 2+ hours on high and 4+ish? on low. I liked the first one so much I grabbed a second one and I just toss it in a pocket during long night rides and swap them out on the fly while i'm rolling along. The mount isn't an exact GoPro mount, it takes some fiddling, I spent a little time with a file making one of my mounts fit just right.

^^ On the subject of lights, I'm running these and have been very happy with them. They've survived rain and snow, commuting, gravel rides and races and all the general abuse of being on the bike 24/7 for close to a year.

Rear;
Small, bright. 3 modes; low, high, and flash. My first one I ordered nearly a year ago for $14, the second ordered a couple months back was $20. They run about 2+ hours on high and 4+ish? on low. I liked the first one so much I grabbed a second one and I just toss it in a pocket during long night rides and swap them out on the fly while i'm rolling along. The mount isn't an exact GoPro mount, it takes some fiddling, I spent a little time with a file making one of my mounts fit "just right".