Electronic ballast unit with integral light sensor and circuit

Electronic ballast with built-in times power saver and photoelec

Electronic candle and method of use

Electronic candle system

Electronic display dimming circuit

Electronic flash

Electronic flash apparatus

Electronic flash device

Electronic flash system

Electronic flash unit

Electronic flash unit with operational signal

Electronic flash with automatic duration control

Electronic jewelry simulating natural flickering light

Electronic lamp control apparatus

Electronic photographic flash apparatus

Electronic slave flash delay device

Electronic strobe flash apparatus for indirect and direct flash

Emergency lighting device

Energy conserving electrical power control circuit

Energy efficient infrared light switch and method of making same