Specifications:
Size:  13mmx 23mm;
Material: Aluminum
Surface treatment color: Black
Life: continuous output, continuous service life of >10000 hours (industrial grade)
Output wavelength: 635nm/ + 5nm
Output power: <3mw
Spot shape line fine line (At 5 meters, line is less than or equal to 2.5mm, The angle is  130 degrees)
Circuit control: APC line (power stability)
Working voltage: DC=3~6V
Working current: I<40mA
Wire: 120MM black and red electronic wire
Work temperature: -10 degrees to which °
Storage temperature: -20 ~ 60 °

Package include:
1pcs 635nm Red Laser Line Level Module