BL10 dual use cycling LED lamp use 17pcs SMD LEDs generates max 100lm output. The lamp integrated a 500mah Li-ion polymer 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, low, slow strobe, frequency strobe, and energy saving strobe modes after turn on the light.