Discharge lamp having a visual-change timer
Dual LED/incandescent security fixture
Flicker detecting system for detecting lamp life differing...
Illumination warm-up control in a document scanner
Lamp monitor and lamp
Light grid for detecting objects in a monitoring region
Light output control method and lighting system using the same
Lighting device with night light and human body sensing...
Nightlight and lamp control
Power supply and control device for the proper operation of a ra
Proper light emission indicating device for computer flash devic
Three terminal solid state pilot light