I US E A EXTENSION CORD FOR MY COOP AND PUT A PLUG SPLITER SO I CAN RUN THE HEAT LAMP AND THE HEAT TAPE FOR THE WATER AND USED THE WIRE NAILS WITH PLASTIC HOLDER TO HOLD IN PLACE AND KEEP OUT OF CHICKENS WAY . IF YOU INTEND TO USE EXTENSION CORD MAKE SURE IT IS A HEAVY DUTY FOR THE ELEMENTS OUT...