KMD SPORT Super Sale 3600 Lumens Bike LED Headlight 5200mAh Battery & Free Headband | Waterproof Cycling Lights | 3 Lighting Modes | Wide Beam Headlamp Set for Mountain, Road & Touring Bikes (Black)

Not as bright as advertised I would say maybe half as advertised. Unable to mount properly on my 31mm handle bars. Had to move to midway towards hand. That put the center of the beam to the side which makes for an odd feeling when your trying to look center of trail. I cant speak for battery life since not bright enough for me to take out on trail.

Great product extremely bright even in low setting

Junk. On medium light level the battery lasts 30 minutes of my 60 minute commute. Absolute garbage.