Product name: Adjustable Focus Green Laser Pointer. Model No. JL-049 Output power: 100mW-400mW. Output wavelength: 532nm. Battery: 1X"CR123A" with recharge. Laser Type: Visible laser Diode. Visible green DOT and green beam at night and in lighted area. Technical Parameter: Adjustable focus, green DOT facula, continuous output and working time over 5000 hours Blue high-brightness LED work instructions Working Voltage: DC=4.2V Trigger Voltage: DC=3.6V Working Temperature: 0-40 Storage Temperature: -10-50 Appearance and Color: Black.