This is 532nm Green Diode Laser module,you can DIY green laser products.
It is 532nm,it is more brightly than 520nm.
In winter ,the temperature is below 15degree C,it needs preheart 2-10seconds .
Description
Industrial 532nm Green Dot laser 5mw with cable
Laser Size:12X33mm, Laser Head 10mm
Materical:Laser Diode+Nd:YVO4+KTP
Spot Mode: Working Voltage:DC3-3.7V
Working Temperature:0-50°C
Working Current:>200mA
Lifetime:8000hours
Packing:1pcs Green Dot Laser Module