Anti-flicker circuit for automatic turn-on of nightlight
Apparatus and method for monitoring the life of arc lamp bulbs
Automatic configuration systems and methods for lighting and...
Compensated light sensor system
Daylight control system device and method
Digital light responsive switching circuit
Digital room light controller
Fail-off photo control circuit for night lighting
Firing apparatus for a plurality of electric valves
Infrared actuated control switch assembly
Infrared actuated control switch assembly
Lighting control apparatus
Optically triggered back-lighted thyratron network
Two photocell controlled lighting system employing filters for t
Wireless lighting system