The TCM-10 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.Features :100% Ambidextrous Independent SwitchesSwitch operation/function is the same on both sides of weaponDownward motion for momentary/constant-on5 Inserts - Fits more than 140 makes and modelsFits into the same holsters as the TCM-550XL (light has an identical physical size)Battery Safe Mode is now Switch Controlled and NOT retained in MemoryStrobe can be turned on/off using the Switches and is Retained in Memory