The Lezyne KTV Drive Headlight features two bright LEDs and a 200-lumen Daytime Flash mode. It features a super lightweight yet durable co-molded construction that is IPX7 (waterproof) rated. Up to 20 hours of runtime and up to 200 lumens. And it features an integrated USB stick for convenient cable-free recharging.Run time: 2 - 20 hrs. Max lumens: 200Provides 200 lumens from two ultra-bright LEDsHeadlight mount easily on different diameters and shapes with wildly adjustable silicone strapUSB recharging time of 3 hours