1, Green Laser Flashlight 2, Adjustable Beam Focus 3, Mount & Scope Adapter 4, Accuracy Adjustment Code: green laser-GX001 Green Laser FlashlightPower: 20mW to ... )Can zoom in and zoom out beam diamter for laser sight and laser flashlightWorking temperature: -20 to 40CWavelength: 532nMWeight (net, only ... CR123 battery ,you could match it by yourself Green Laser Flashlight with Adjustable Beam Focus