BRIGHTEST KEYCHAIN LIGHT EVER - Produces 360 lumens with four brightness levels that allow you reach up to 74m. This completely destroys common AA battery powered lights which only reach 180+ lumens on a single battery or 345+ lumens on 2 batteries! INCREDIBLY LIGHTWEIGHT + DURABLE - Constructed from aero-grade aluminium, it weighs only 23.4g with built-in battery! The rear key ring is capable of holding up to 29kg! RECHARGEABLE + LONG BATTERY RUNTIME - Built-in USB charging port and Li-ion battery provides up to 90 minutes run-time at 150 lumens and over 46 hours run-time on lower modes. EASY TO OPERATE - Single-handed operation with dual switch design. Separates on/off operation and mode selection. Prevents accidental on and battery drain with pocket clip and smart controls.