The power supply depends on how many diodes are placed on the tape and which Dina this tape. In color, diode ribbons can be red, yellow, blue, green, white, rgb. The latter can give any glow, so such tapes are the most expensive. To regulate the saturation of light, there are special control panels. Using the LED ribbons in the room, you can create a more interesting interior that will appeal to both the owners and guests.