100% new with high quality Working time: more than 2000 hours Spot mode: dot facula, continuous output Laser wavelength: 650nm (red) Copper head is 6mm diameter Light power: 5mW Power supply voltage: 3/5VDC Working current: 40mA Working temperature: -36 ~ 65 Power cord length: 75mm Shell material: brass Quantity: 1/3/5/10 pcs. Application: 1. Orientation observation device2. laser test tools3. Rotary positioning accuracy4. Positioning of medical equipment5. Production of signal equipment6. Use for DIY or robots Package includes: 1pcs or 3pcs or 5pcs or 10pcs Line Laser Module (for your choice) Note: 1.1cm = 10mm = 0.39 inch.2. Please allow 1-2cm error due to manual measurement and make sure you don't mind before placing order.3. Please understand that colors may contain chromatic aberration as the different placement of photos.