The Mega Drive 1800i delivers up to 1800 lumens of output for serious night riding. Its output is optimized by Tri-Focus Optics, which creates an ideal beam pattern for high speed. It’s constructed from machined aluminum with built in cooling fins that improve its overall performance. With seven output modes, an Auto Day/Night sensor and optional features such as Lezyne's Smart Connect System and Remote Switch compatibility, this light is super versatile. The light is micro-USB rechargeable and it can run for up to a massive 148 hours on a full charge.