PETZL Bindi Headlamp - Ultra-Compact Rechargeable 200 Lumen Headlamp Designed for Everyday Athletic Activities - EmeraldSynthetic RELIABLE PERFORMANCE: With Petzl's 50: 50 Brightness to Burn Time ratio, your Petzl headlamp will retain 50% of its original brightness halfway through the Burn Time, rather than the 20 30% brightness you get in other brands. RECHARGEABLE: Lithium Ion 680 mAh battery is rechargeable via micro USB port, with charge indicator. FULL TILT: Petzl headlamps can be tilted up or down allowing users to illuminate their surroundings while wearing the