Magnetic electronic fluorescent lamp ballast

Means and method for controlling lumen output and power consumpt

Means for controlling lumen output in power consumption of phosp

Means for preventing damage to electronic ballasts as a result o

Metal halide lightbulb strobe system

Metal vapor lamp starting and operating apparatus

Method and apparatus for controlling flash tube discharge

Method and apparatus for energizing a gaseous discharge lamp usi

Method and apparatus for starting and operating fluorescent lamp

Method and apparatus for switching of parallel capacitors in...

Method and circuit for controlling current in a high...

Method and circuit for improved HID lamp maintenance

Method and circuit for improving HID lamp starting

Method and circuit for operating an electrical flash-tube

Method and circuit for square wave current generation by harmoni

Method and device to inhibit the flash photography of a vehicle

Method and means for dimming ballasted lamps

Method and system for switchable light levels in operating gas d

Method for igniting high frequency operated, high intensity disc

Method of and apparatus for automatic electronic flash lamp cont