Cygolite Dash Pro 600 Rechargeable Headlight. The sleek Cygolite Dash Pro 600 provides a powerful 600 lumens to pierce through the night. 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. Every bit the road cyclists light it uses a low profile flexible mount designed for most handlebars including aerobars.