Spiral staircase with round light bulbs on threadsSpiral staircase with round light bulbs on threads
It's boring on earth without color, the lamp was invented only by geniuses, but light is everywhereIt's boring on earth without color, the lamp was invented only by geniuses, but light is everywhere
A light bulb with an incandescent filament on a black backgroundA light bulb with an incandescent filament on a black background