Parameter

Wavelength: 532nm
Output Power: 30mW
Working Voltage: 3 V (two AA/AAA batteries recommended)
Working Current: <200mA Duty Cycle: 45 seconds On 15 seconds OFF without heatsink if you add the heatsink you can prolong the duty cycle to 1hr on and 5 minutes off. Working Temperature: ＋10 ℃~＋35 ℃ Laser Shape: Line Life-Span: > 4000 hrs under proper use
Material and Color: Brass
Focusable: N/A
Dimensions: ￠12 mm X 50mm(including PCB)

Feature:
Spring is Negative -, bronze casing is postive +
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 532nm 30mW Green Laser Line Module