1/2/5/10pcs 5MW High Power DIY Lab Red Laser Head Diode Module TO-18 Laser Diode Burning Infrared High quality and durability _x000D_ 9 Low operating current_x000D_ Wave length:650nm_x000D_ Operating voltage:2.2V_x000D_ Sealed size:TO18 5.6mm_x000D_ Laser working life:More than 7000 hours_x000D_ How the laser works:Point spot, continuous laser (or pulsed laser)_x000D_ Laser power (constant power):1mW5mW American standard/0.5mW0.9mW European standard_x000D_ Operating temperature:-36C~65C_x000D_ Size:10.5cm/0.390.20inch_x000D_ Quantity:1/2/5/10pcs_x000D_ Package Include:_x000D_ 1pc or 2pcs or 5pcs or 10pcs Red Laser Head_x000D_ Notice:_x000D_ 1.Transition: 1cm=10mm=0.39inch._x000D_ 2.Please allow 1-2mm error due to manual measurement and make sure you do not mind before ordering._x000D_ 3.Please understand that colors may exist chromatic aberration as the different placement of pictures. _x000D_ _x000D_ _x000D_