My General Electric Nema head in 100 watts mercury vapor
29:23
Westinghouse 175watt Mercury Vapor NEMA Street Light
15:46
My General Electric M400R3 in 400 watts HPS
3:41
Polamp mercury vapor lamp & Helios high pressure sodium lamp
32:12
Electripak 175watt Mercury Vapor Security Area Light (1996)
4:37
Dobijanie lamp sodowych 70W
5:10
GE's bizarre early attempt at a CFL
8:03
Swapping out the Dx 175 bulbs for the Clear, Mercury Vapor
7:00