Power: battery or power supply network. Lighting: LED lights (compared to the incandescent lamps LED consumes 85% less energy and lasts 20 times longer, LED's lifespan is about about 20 thousand hours). The principle of inclusion: the light turns on by removing the plug; turns off by returning it to the place. It is also possible to use a third-party switch. Adjustment of the light intensity: depends on the number of open craters. Light colour: warm white.