Laser Pointer Forums - Discuss Laser Pointers | High Power Lasers

I am very new to the world of lasers, but I already understand that it is marginally cheaper to build your own laser then to buy one. I have found a diode on ebay, but I still do not understand the process of installing it into the host, what parts I need, or which batteries to use. If anyone out there could help me build my first laser, it would be greatly appreciated :yh:

This is the specified diode: 150mW High Quality 532nm Green Laser Diode Module Green Beam Lab with Driver | eBay