Igniting circuit operated by varying the impedance value of the

Ignition and operation of electronic high intensity...

Ignition circuit for a gas discharge lamp

Ignition device for a gas discharge lamp

Ignition scheme for a high intensity discharge lamp

Illumination adjusting device, illumination system using the...

Incandescent lamp dimmer providing control voltage IES square la

Inductive-resistive fluorescent apparatus and method

Inner raster distortion correction circuit

Input current limiting circuit and driving device using the...

Instant start for an electronic ballast preconditioner having an

Instant-on vapor lamp and operation thereof

Intellectual lamp unit able to be installed on a...

Intelligent drive circuit for a light emitting diode (LED)...

Intensity regulator, especially a light regulator

Internal power supply for a ballast

Intrinsically safe miner's lamp

Inverter and method for driving a plurality of cold cathode tube

Inverter capable of switching working frequency

Inverter circuit for lighting a cold cathode tube by the use of