More vaguely-informative ramblings about low pressure sodium lamps
13:54
The High Pressure Sodium Light: Ubiquitous, effective, but good?
12:03
THIS LAMP SOXs! "Yellow" tech of bright metal vapor lamp. Beats modern LEDs in brightness per watt?
5:52
Electronics, Alarm and CCTV Courses. Learn with Practical Kit through the Online Virtual Classroom
4:25
Homemade sodium-vapor lamp LPS (first attempt)
21:40
Some more Kettle Thoughts (including; Microwaving Water!)
21:40
The LED's Challenge to High Pressure Sodium
10:35
China vs German Oil Lamps! Not even fair
9:30