BL16 bicycle front light use a high performance CREE XP-G2 LED generates max 300lm output. The lamp integrated one 1800mah Li-ion battery to support at least 3 hours non-stop lighting. Areo-space aluminum material with hard anodized surface finish make the light much more durable. Easy switch operation, quick click to switch high and low modes and off. The indicator shows the battery power everytime.