Cut-off arrangement for and method of protecting a ballast-start

Cycling limiting circuitry and method for electrical apparatus

DC Light dimmer control system

DC to DC converter with overvoltage protection circuit

Device for improving the efficiency of a low-pressure sodium vap

Dimmer apparatus

Dimmer protection for compact fluorescent

Discharge lamp control system

Discharge lamp lighting device

Discharge-lamp lighting circuit

Electric incandescent lamp for series arrangement having an elec

Electric-discharge lamp control apparatus and...

Electrical compensation and fault tolerant structure for...

Electrical power control system for lighting systems

Electronic ballast having an oscillator shutdown circuit for sin

Electronic ballast with controlled operating voltage

Electronic ballast with safety feature

Electronic ballast with shock protection feature

Electronic circuit to initiate and sustain current...

Energy conserving instant-start series-sequence fluorescent lamp