Phosfluorescent Lamp - 'Lupinescence' : LEDs off, dim WL

Phosfluorescent lamp made from spare test tubes, hardwood dowels, copper pipe, screen molding and veneer. Electronics: 18 AWG speaker wire, LM317T voltage regulator and a 51 ohm resistor. Driven by 4x 380nm LEDs at 25mA. This lamp also has a power switch on the back.

 

Shown in dim light with LEDs off after having been on for a few minutes.

Done