Ballast circuit for gaseous discharge lamps without inductive el
Ballast circuit for high intensity discharge (HID) lamps
Ballast circuit having electromagnetic interference (EMI) reduci
Barricade light control switch apparatus
Battery operated inverter circuit for capacitive loads such as e
Boosted D.C. supply circuit and luminaire employing same
Bridge inverter ballast for fluorescent lamp
Brightness controllable flashlights