Output: 250mW after the beam expanded, the output must be reduced to 100-150mw
Working voltage: 4.2-5V can work with one pc 18650 li-on battery
Diameter of the beam: 14-16mm
Working current: 300mA
Storage temp.: －40℃～80℃
Duty cycle: 4-8hr on you can prolong it by adding heatsink
All fat beam lasers normally used in fog or smoke area, so that in those areas, the beam can be seen. if you use it in open and bright area, you man cannot find the laser beam.