Electronic ballast for a high intensity discharge lamp with auto

Electronic ballast for a high-pressure discharge lamp

Electronic ballast for at least one low-pressure discharge lamp

Electronic ballast for discharge lamps

Electronic ballast for fluorescent lamp

Electronic ballast for fluorescent lamps

Electronic ballast for gas discharge lamp

Electronic ballast for gas discharge lamps

Electronic ballast for gaseous discharge lamps

Electronic ballast for high-intensity discharge lamp

Electronic ballast for high-intensity discharge lamp and method

Electronic ballast for high-intensity discharge lamps

Electronic ballast for high-intensity discharge lamps

Electronic ballast for one or more lamps

Electronic ballast for the operation of at least one gas dischar

Electronic ballast having a converter which can continue to...

Electronic ballast having a flyback cat-ear power supply

Electronic ballast having a symmetric topology

Electronic ballast having a triac dimming filter with preconditi

Electronic ballast having adaptive frequency shifting