Flasher devices for lamps
Flasher inductance circuit
Flashing florescent lamps
Flashing lamp unit
Flashlamp pulse shaper and method
Flashlight
Flashlight
Flashlight
Flicker-control device with polarized lamp
Flickering candle lamp
Fluorescent lamp ballast
Fluorescent lamp brightness control
Fluorescent lamp energizing circuit
Fluorescent lamp high frequency operating circuit
Fluorescent lamp lighting circuit
Frequency controlled lighting system
Frequency controlled lighting system
Gas discharge lamp employing a pulse generator with a double sta
Hazard warning circuit
Heat-sensitive variable-resistance light socket insert