The sleek Cygolite Dash series is engineered for road cyclists. Its highly efficient lens enables an extra wide, long range beam to maximize your line of sight. Beyond its exceptional night capabilities, the built-in array of quad Daytime Running Lights (DRL) makes you stand out in broad daylight. The Dash series uses a low profile flexible mount designed for most handlebars including aerobars. Coupled with the Hotrod 50 Tail Light, this combo pack ensures that you'll see and be seen day or night. Features: Enhanced Cycling Optics that cast an extra wide and long range beam and side light ports for 180 degree visibility Versatite flexible mount easily mounts to any shape handlebar Water-resistant design for all riding conditions Built-in battery low and charging indicators Hotrod 50 Tail Light features a sleek profile and flexible, aeropost compatible mounting Run Times (Front): 1.25 Hours (Boost) 1.75 Hours (High) 3 Hours (Medium) 3 Hours (SteadyPulse) 10 Hours (DayLightning) 10.5 Hours (Low) 10.5 Hours (Quad LED Steady) 80 Hours (Quad LED Flash) Specifications: Brightness: 600 Lumens (Front), 50 Lumens (Rear) Battery Type: Rechargeable (USB) Run Time: 1.25 - 80 Hours (Front), 1.5 - 100 Hours (Rear) Beam Color: White, Red Color: Black Weight: 95g (Front), 29g (Rear)