Here are the specs. The TCM Sub Compact Weapon-Mounted Light uses a super-bright LED rated at 650 lumens working in conjunction with a precision-engineered total internal reflection (TIR) lens to create a bright white beam of light. Fits on all Sig P365 Series handguns excluding X-Macro. 100% Ambidextrous Independent Switches. Switch operation/function is the same on both sides of weapon. Downward motion for momentary/constant-on. Battery Safe Mode is Switch Controlled and NOT retained in Memory. Strobe can be turned on/off using the Switches and is Retained in Memory. Battery loads by removing bezel. THIS IS A LIGHT ONLY NOT A LASER.