Photo of a man in white light with light stubble and green eyesPhoto of a man in white light with light stubble and green eyes
The light bulb is lying next to a burning energy-saving light bulbThe light bulb is lying next to a burning energy-saving light bulb
How the lighting changed: from a candle to a light bulbHow the lighting changed: from a candle to a light bulb
10 green lights on, 2 yellow and 5 green lights off10 green lights on, 2 yellow and 5 green lights off