The UVR-588XL USB Rechargeable UV Flashlight uses an LED rated at 37 mW/cm2 on high for 14 hours but can be extended up to 40 hours in low mode (13mW/cm2). The 385 lumen white floodlight runs for 5 hours on a single charge. Total UV output of the UVR-588XL is 1250mW. The UVR-588XL is rated IP-X7 waterproof and features a discretely sleeved collar that opens for direct USB charging. The built-in charging indicator turns from red to green when fully charged. Included is a 2 foot USB-C charging cable, lithium-ion rechargeable battery, and CR123 battery carrier (CR123 batteries not included) for added convenience.