This falling Ice Drop Icicle with LED lights is meant to be used as a screw-in replacement with C7 size (E12) commercial grade strands. Fits directly into existing traditional sockets without extra transformers. Saves up to 90% on electric use, pure white color, 9" long, 1.5" wide, 1 watt power on 15 AMP circuit. 15 pure white LED in this icicle. Not recommended for dimming.