Parameters
Wavelength:532nm
Output Power:20mw
Working Voltage:DC3v-4.2v
Working Temperature:＋15 ℃~＋35 ℃
Laser Shape:Line
You can also get a dot laser spot if you take off the line lens
Focusable:N/A
Material:Brass
Duty Cycle:45 seconds on,15 seconds off
Dimensions:￠12 mm X 35mm(not include PCB)

Features
Red wire to positive "+",black wire to negative "_"
with switch and spring on the PCB, can be used to DIY laser pointers
The laser module is precise instrument. Before carrying on some laser DIY activities, please read about the technical information first and protect your eyes before 30mW laser ray. You must know the possible hazard when doing laser DIY.
Please avoid direct eye contact to the laser.
 

Package
1pc Industrial/Lab 20mW 532nm Green Laser Diode Module DC3V-4.2V Lazer Line Unit