The Cygolite Dash 520 features a powerful 520 lumen extra wide, long range beam to maximize your line of sight. Designed for road riding, it uses a low profile flexible mount designed for most handlebars including aerobars. Paired with the 30 lumen Hotshot Micro this convenient package will make you stand out day or night. Features: 520 lumen headlight with 8 modes, 30 lumen tail light with 5 modes engineered for use on roads and commuting Headlight features exclusive quad LED Daytime Running Lights (DRL) to stand out in broad daylight USB rechargeable internal headlight battery lasts up to 63 hours, and tail light lasts 100 hours Low profile, water resistant design, headlight only weighs 75 grams and tail light only 35 grams Specs: Lumens Front520 Lumens Rear30