Lezyne's Deca Drive is their finest high-performance LED cycling light, designed for all forms of serious night riding. Compatible with the portable Infinite Light Power Pack, which can double the battery runtime. Durable, heat-dissipating CNC machined aluminum construction. Three market-leading, ultra-high-output LEDs delivering up to 1500 lumens. Optimized Constant Lumens system maintains steady lumen output throughout battery cycle. Optional Overdrive Race Mode toggles between Overdrive and Economy modes only. Mode Memory function returns to selected mode after turning off. Enhanced MOR (Maximum Optical Reflection) lens with built-in side visibility. High-speed 2 Amp USB charging capabilities (with compatible wall adapter). Ultra-rugged and pliable strap securely mounts to all standard bar shapes, including aero bars. Advanced Li-Ion battery for superior runtime.