100% New with high quality Working life: more than 2000 hours Spot mode: dot facula, continuous output Laser wavelength: 650nm (Red) Copper Head Diameter is 6mm Light power: <5mW Supply Voltage: 3/5VDC Operating Current: <40mA Operating temperature: -36 ~ 65 Power lead length: 75mm Shell Material: Brass QTY:1/3/5/10PCS. Application: 1. sighting device for orientation 2. laser test tools 3. Concentricity positioning 4. Medical equipment positioning 5. Production of signal equipment 6. Use for DIY or robots Package Included: 1pc or 3pcs or 5pcs or 10pcs Line Laser Module(as your choose) Notice: 1.1cm=10mm=0.39inch. 2.Please allow 1-2cm error due to manual measurement and make sure you do not mind before ordering. 3.Please understand that colors may exist chromatic aberration as the different placement of pictures.