Q-BAIHE 532nm Green Diode Lasers Laser Dot Module 3V with Driver;

Green Diode Lasers Industrial/ Lab 532nm 10mw Laser Dot Module 3v

Features:
Output Power: 1mw
Wavelength: 532 nm
Working Voltage: 3V
Working Temperature: ＋15 degrees~＋35 degrees
Duty Cycle: 30 seconds ON, 15 seconds OFF
Laser Shape: DOT
Focusable: N/A
Material and Color: Brass
Spring is Negative -, bronze casing is postive +
Dimensions: 12 mmX50mm(including PCB)
with switch and spring on the PCB, can be used to DIY laser pointers

Package:
1 x 532nm 10mW green laser module