Seca 1800s powerfully focused beam & ultra-compact size reinvents the e-Bike light Maximizing output without bulk, the Seca features an optimized reflector with 4 Cree LEDs Designed to integrate into popular on-board batteries such as Shimano & Bosch systems, multiple mounting options creates the perfect e-Bike lighting solution 1800 Lumen output certified to the FL-1 Standard Engineered with the best CREE LED & enhanced firmware Custom engineered reflector optimizes the light to provide a smooth, even beam pattern that focuses the light exactly where you need it Beam pattern was engineered to maximize riders depth perception using optics that eliminates the snowball effect with a clean transition across the beam Designed to seamlessly integrate into an e-Bike's 6V to 14V on-board battery