the bright lights in the darkness made the surroundings seem cold

ambient base bayonet bright brightness bulb carbon ceiling chandelier cold color compact cool darkness daylight design desk dimmer discharge edison efficiency energy filament fire fixture flicker floor fluorescent functionality gas glass halogen hazard holder illumination incandescent innovation lamp lampshade led light lighting lights lumens made mercury metal night patent plastic portable safety sconce screw seem shape socket sodium surroundings switch task temperature tesla tungsten vapor voltage wall warm wattage xenon