The ProTac series expands into weapon-mounted lights with this 625 lumen light featuring a dedicated fixed-mount for Picatinny rails. Uses either a remote switch with momentary/constant on operation or a standard push-button tail switch. TEN-TAP® Programming - choice of three operating modes: 1.) high/strobe; 2.) high only; 3.) low/high High: 625 lumens; 22000 candela; 297m beam; runs 2 hours Low: 60 lumens; 2000 candela; 89m beam; runs 21 hours Strobe for signaling or disorienting Remote pressure switch features momentary and ?constant on? operation Integrated rail clamp attaches to MIL-STD-1913 rails Easy to attach secure mounting Includes remote pressure switch push-button tail switch remote retaining clips double-sided tape and zip ties Uses two CR123A lithium batteries (included) Durable anodized aluminum construction with impact-resistant tempered glass lens IPX7 rated with the Standard button switch installed; waterproof to 1 meter for 30 minutes. IPX4 rated with the Remote Pressure Switch installed Operating temperature: -40°F to +120°F Limited lifetime warranty RoHS compliant