Discharge lamp ballast with resonant starting
Fluorescent lamp ballast
Gas discharge lamp employing a pulse generator with a double sta
Ignition device
Illuminating device for a microscope
Lighting unit with improved control sequence
Power converter and power conversion method with reduced...
Solid state electronic ballast system for fluorescent lamps
Solid state lamp ballast
Switched mode electrode ballast
Track lighting system for 277 volt power line