The ProTac 2.0 Rail Mount HP offers the perfect blend of power at 2,000 lumens and 85,000 candela. It features a tail cap switch for momentary or constant on operation and a port for an optional remote pressure switch. Powered by an SL-B50 battery pack that charges using a USB-C cord outside of the light or inside - no need to remove from your weapon.Features :Includes mounting hardware, M-LOK mount, momentary pressure switch, (1) SL-B50 battery pack, and USB-C cord2,000 Lumens85,000 CandelaConstructed from 6000 Series machined aircraft aluminum with Type II MIL-Spec anodized finish