The Crimson Trace Tactical Light features a powerful 500 lumen white tactical light in one very compact package. The Tactical Light is equipped with a high output Cree XPL LED white light. The housing for this light is made from an ultra durable anodized aluminum and runs efficiently on a single CR123 Lithium Battery. The unit can be installed in just a few minutes with just simple tools.Specifications: Crimson Trace Tactical Light CWL-102 500 Lumen LED White Light One CR123 Lithium Battery Tactical Light Instant Activation/ Tap-On/Tap-Off Anodized Aluminum Housing High Output Cree XPL LED Rear/Remote Activation Switches Waterproof up to 1 meter Impact resistance up to 1 meter Battery life: 1 hr 10 min Length: 4" Weight: 3.9 oz with battery installed May be used as a handheld flashlight Remote on / off pad with cord, hook & loop mounting straps and doublestick tape Matte Black Finish