The TSM-11W Subcompact Tactical Weapon-Mounted Light for Glock G42/G43/G43X/G48 pistols uses a super-bright LED rated at 150 lumens working in conjunction with a precision-engineered miniature reflector to create a bright white beam of light rated at 104 meters. This weapon light features completely ambidextrous and intuitive toggle switches on each side of the light to operate the momentary-on and constant-on lighting modes.