First of all here is the laser module i bought 1pcs 650nm 100mW Dot Module Car Laser Laser Module | eBay yes it was from eBay. The person said it didn't have a driver so i started to look at some i couldn't find much. I also saw that you can make them for really cheap but i couldn't understand anything they said. I was just wondering how to install a driver like this one Adjustable Current Laser Diode Driver 80 500mA w TTL | eBay and if that would work for it. Thanks in advance!