Ballast dimming control IC

Ballast filtering scheme for reduced harmonic distortion

Ballast for a discharge lamp

Ballast for a discharge lamp

Ballast for a discharge lamp with false deactivation detection

Ballast for a gas discharge lamp and a method of controlling...

Ballast for at least one gas discharge lamp and method for...

Ballast for discharge lamp

Ballast for discharge lamp

Ballast for high intensity discharging lamp

Ballast for high pressure sodium lamps having constant line and

Ballast for high-pressure gas discharge lamp

Ballast for light emitting diode light sources

Ballast for one or more fluorescent lamps including threshold se

Ballast for operating electric lamps

Ballast having a lamp end of life circuit

Ballast having multiple circuit failure protection and...

Ballast instant start circuit

Ballast modifying device and lead-type ballast for programming a

Ballast power control circuit