Fast warmup ballast for HID lamps

Feedback control system of an electronic ballast which detects a

Field emission lamp structures

Filament heating apparatus

Filament lamp light quantity control method and filament...

Filament lamp light source unit and filament lamp light...

Fitting for compact electric discharge lamps

Fixed frequency, variable duty cycle, square wave dimmer for hig

Fixed lamp frequency synchronization with the resonant tank...

Fixed lamp frequency synchronization with the resonant tank...

Flashing discharge tube-use power supply and control method...

Fluorescent ballast with fiber optic and IR control

Fluorescent ballast with unique dimming control

Fluorescent ballast with unique dimming control

Fluorescent lamp ballast control circuit

Fluorescent lamp ballast with current feedback using a dual-func

Fluorescent lamp ballast with integrated circuit

Fluorescent lamp control circuit with dimmer

Fluorescent lamp controllers

Fluorescent lamp controllers