Lasers and other DIY electronics, and fast cars and motorcycles.
My Builds
5W+ ~470nm NUBM07E MX900 Build
5 x 7W+ 450nm MX900 Builds
3,343mW 445nm "Zombie Killer" Build
1.5W NDG7475 Ehgemus Host
1.3W+ NUGM01T
235mW PLP520-B1
LPMs
Laserbee 3.7W USB
Ophir DG-HH(10W)