Check the listing for details. 5pcs Laserland Focusable 12*35mm 30mW 650nm 660nm Red DOT Laser Diode Module 5V. Condition: New. Listed at 44.98 USD. 5pcs Laserland Focusable 12*35mm 30mW 650nm 660nm Red DOT Laser Diode Module 5V This red laser module is an industrial electronic component and used for as Industrial test, Lab, DIY. Not a handheld laser Please keep the lens clean to make the laser beam clear and bright. Before carrying on some laser DIY activities, please read about the technical information first and protect your eyes before laser ray. Be sure the operator has experience in optics DIY or test. Note: The modules are tested and the output power are measured by laser power meter before sending out. Please don't compare the power of this one with a none-measured laser. If you doubt the output, please have the laser you recieved checked by laser power meter. If there is any problem, please feel free to contact us. We will solve the problem asap. Specification Model: 650MD-30-1235 Output Power: 30mW Wavelength: 650nm Working Voltage: 5V Working Temperature: -10 ~40 centi-degree Laser Shape: ellipse Dot Focusable: Yes Material and Color: Metal Lens: Plastic Dimensions: Diameter12 * Length35mm