Note: A little difference between old label and new label, but products are same & top prenium quality, thx! Here's some info on the difference between the laser pen: (green, red, blue-violet)
Brightness: green > red > blue-violet light
Price: red < blue-violet light < green
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) * The Green one is More Bright than the purple and Red one in the same power. The Red and Purple beam are barely visible.
WARNING: *Never point at people and always avoid direct eye contact. Please keep out of reach of children *Please do not perform the installation in the dusty environment. *Please read installation steps from the two tabs on the front and back protector layers before performing
installation Feature: Laser
Color: RED, GREEN, BLUE VIOLET
Output mode: Constant Wave
Power supply: 2 X AAA
Batteries (not include) 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: 1mw
Working Voltage: DC= 3.0V
Trigger Voltage: DC= 2.8V
Package include:
( Not Include Battery / Charger ) 1 x Green laser pointer 1 x Blue laser pointer 1 x Red laser pointer Introduction: * Press the push button to turn it on, release the push button to shut if off automatically. * It will be used to point at any desired targets on projection screens, video monitors, and presentation graphics. * Also can be used for forensics, illumination, indicating, alignment, sky pointing (astronomy) or just being cool.