无标题文档 Title： Red Light Dot/Cross Universal Laser Positioning Light Handheld Portable Laser Marking Machine Wavelength: 648NM (customizable wavelength) Output Power: 10-200mW Supply Voltage: 3.7V Spot Mode: Dot / Line / Cross Product Material: AviationAluminum Working Temperature: -40 ° C -75 ° C Dimensions: 20mm*108mm (adjustable focus) Working Life: 8000 hours Weight: 100g Output Band: Visible Light Product Description: The inside of the product is assembled with pure copper, which can quickly cool the laser diode. The external aluminum parts are anodized to prevent static electricity. The copper parts are oxidized and blackened to achieve the insulation effect. The original laser diode is equipped with special official mirror and special regulated power supply. The light emitted is clear, bright, uniform in line and high in straightness. Under many special conditions, the ideal effect can be achieved, with special power supply, anti-interference, high stability suitable for harsh working environment, which can effectively guarantee the stability and service life of the product. Package: 1*Laser 1*Battery Charger(Battery 14500 not Included) 1*Bracket On Apr-14-19 at 23:58:14 PDT, seller added the following information: