515nm 520nm 10mw Focusable Positioning Alignment Tool Green Dot/Line/Cross Laser Diode Module With USB Parameters: Wavelength:520nm Output Powerful:10mw Working Voltage:3V-5V Working Current:140mA Size:12x40mm Laser Shape:Dot/Line(120 degrees)/Cross(optional) Adjustable:Yes Working Temperature:-10-55 Degrees Features1 520nm laser diode is an enterprise electronic element and used for as Industrial testament, Lab, DIY is exact and touchy optical instrument. Before carrying on some laser DIY activities, please investigate the technical information first and hold your eyes before laser ray. Be yes the operator has travel in optics DIY or testing put on 520nm laser protection goggles once you paintings on it. Package1pc Focusable 520nm 10mw Green Laser Diode Module with USB