Ballast circuit for direct current arc lamp
Ballast circuit for fluorescent lamp
Ballast device for compact fluorescent lamp
Ballast socket for compact fluorescent lamp
Ballast socket for compact fluorescent lamp
Bifilar helical electrode arrangement for transversely exciting
Bimetal switch for electrode heat cutout within an electrically
Bimetal/resistor switch and ceramic bridge assembly for metal ha
Blended lamp
Blended light lamp
Boosting transformer for high-frequency heating device
Boot for a rare gas illumination system
Bulb with reflector and electrodeless discharge lamp using same
Bulb-form lamp and manufacturing method of lamp case
Bulb-type electronic energy-saving lamp