The Lezyne Helmet Micro Drive Pro 1000+ is a low-profile LED that follows the user's line of sight for superior visibility and excellent night-riding capabilities. With eight LEDs and a maximum output of 1000 lumens this light is engineered for impressive efficiency and runtime providing the best beam pattern for optimal visibility in even the most challenging conditions. Plus with an impressive 60-hour max runtime you can rest assured that this light will last as long as you need it to. Need longer runtimes? It lasts even longer with the Infinite Light Power pack+.