Here's some info on the difference between the laser pen
Brightness: green > red > blue-violet light
Poly thermal performance ( ignition ) : green < red = blue-violet laser pen
Stability: green < red = blue-violet light
( green light is influenced by the climate; you may need to warm it up in cold environments)
Specifications
Laser Color: RED , GREEN , BLUE VIOLET
Output mode:Constant Wave
Power supply:18650 Batteries (not included)
Dimension:f14×160mm
Technical Parameter:Fixed focus, dot facula, continuous output
Green laser Output Wavelength: 532 nm
Red laser Output Wave length: 650 nm
Purple laser Output Wave length: 405 nm
Output Power:5mw
Working Voltage:DC=3.0V
Trigger Voltage:DC=2.8V
Useage:
Travel, tourism, mountaineering, outdoor sports guide guide
Teaching, speech, residential zone, museum, the exhibition hall,
such as the guide indicator
Factories, mines, construction site, natural disasters, lifesaving relief signal indicator
Astronomical workers, astronomy enthusiasts xinghai refers to navigate the vast star indicator
Party, concerts, seminars, concerts, etc all kinds of entertainment party lights
Safety
WARNING:
Do not look into the aperture of the laser beam. Laser radiation is potentially harmful!
Do not directly aim into eye. Keep out of reach of children!
Package Includes
1x Green laser pointer
1x Blue laser pointer
1x Red laser pointer
Note: Not include battery/charger