Brand: Ranger Armory Construction: Aluminum Brightness: 540 Lumens Battery: 1x CR123A (Not Included) Color: Black Features High output 540 lumen LED bulb that is ultra bright Aluminum alloy body with a black anodized finish that is rust and scratch resistant M-LOK mount allows for easy integration to most M-LOK style rails Momentary on/off switch along with an included pressure switch that can be easily attached for better ergonomics