Specification:1. Model No: G301(Green Laser Pointer)2. Body color: black3. Weight: 190g4. Body material: Aerometal5. Switch: momentary switch6. Focus mode: adjustable focus7. Wave length: 532nm8. Output power: <1mw9. Expected lifetime: > 8000 hours10. Working time: > 1 hour11. Battery: 1 x 18650RechargeableBattery12. Laser range: 1000-8000 meters13. Max brightness: > 350lmNOTE:1. Avoid direct eye exposure to laser beam2. Please don't keep open for a long time， otherwise easy to damage the light bulb3. If you want to light match， please adjust the focal length to the largest ， and then match at a distance of approximately 10cm from lamp holder ， the most thin part of the light， at first might do not know how to play， but the fact we tested it completely no problem to light match.4. It can burn only BLACK match，can not burn paper or something else.5. In winter， if temperature is low outside of room， please warm up the laser pen inside room for 5 minutes.Package included:1 x Green Laser pointer1 x Safety Keys1 x 18650RechargeableBattery1 x Battery Charger(EU Plug)