3 Packs 900Miles Green+Red+Blue Purple Laser Pointer Pen Focus/Zoom Beam Lazer

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 Working Voltage:DC=3.0V Trigger Voltage:DC=2.8V Laser Power: 1mW 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