5mW 520nm Green Portable Laser Pointer Point Pen Laser Diode Pointer

• Unit Type: piece
• Package Weight: 0.2kg (0.44lb.)
• Package Size: 10cm x 10cm x 10cm (3.94in x 3.94in x 3.94in)

Cheap laser system, Buy Quality laser mouse pen directly from China pen package Suppliers: 5mW 520nm Green Portable Laser Pointer Point Pen Laser Diode Pointer

 
  
 
the sticker of the laser may be removed before shipping. 
battery not included
battery direction for installation: + pole of the battery connects to the tail of the pen, - pole of the battery connects the spring of the inside module. 
real 520nm green laser diode in ( Osram )
since the very low output, it cannot reach over 500m, and it has no visible beam. 
Specification
   
Output
Wavelength
520nm
Working Voltage
two 16340 li-on batteries (not included)
Working Current
 
Laser Shape
dot
Material and Color
all metal
Dimensions
23*23*16mm
Package
1 X 520nm laser pointer