Fenix Flashlights RC40 3500 Lumens Rechargeable Flashlight, Large, Black Amazing 3500 Lumens from 7.4 Volt built in rechargeable battery Seven outputs including five brightness levels, SOS and strobe Digitally regulated output maintains constant brightness IPX-8 Waterproof, 2 meters for 30 minutes Supported by limited lifetime guarantee from Fenix Lighting, US (PURCHASED FROM AMAZON DIRECT)