Lamp power supply arrangement for key telephone system
Lamp protective, electronic ballast
Lamp socket, lamp and method of controlling lighting
Lamp starting and operating circuit
Lamp starting circuit
Lamp starting circuit
Lamp string controlling device
Lamp transformer for use with an electronic dimmer and...
Lamp with built-in voltage converter including a...
Lamp with integral pulse width modulated voltage control...
Lamp with multiple light-producing elements
Lamp with two light sources
Laser diode intensity and wavelength control
Laser initiated three electrode type triggered vacuum gap...
Laser lamp failure detection method and means
Laser power supply
Last-flash indicator switch in photoflash array
Layered heater system having conductive overlays
Layered self-regulating heating article
Layered system with an electrically activable layer