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
A painted multicolored fish stretching towards the lightA painted multicolored fish stretching towards the light
Three-dimensional windows logo on a blue backgroundThree-dimensional windows logo on a blue background