Lamp control circuit using heater/thermistor time delay
Lamp control responsive to rapid increases in ambient light
Lamp with integral automatic light control circuit
LED driving circuitry with variable load to control output light
Light relay with adjustable core and contact gap
Light sensitive dimmer switch circuit
Light sensitive dimmer switch circuit
Lighting apparatus with auto-recharging
Lighting control system and method
Lighting control system with priority override
Lighting system for roadside signs
Lighting system having photosensing timing switch circuit
Lighting system having photosensing timing switch circuit