3 modes: Switch ON / Push ON / Strobo light modes are available on the Micro Pro Light CQX. Up to 200 lumens: The high brightness LED performs up to 200 lumens. 1 AAA battery can light up for about 1 hour. Ambi switch: The Micro Pro Light CQX can be switched on on both sides, right or left. 20mm rail compatible: It can be installed on handguns on rifles equipped with a 20mm rail. Polycarbonate lens: The sturdy polycarbonate lens refrain from BBs to hit the LED.