For a professional light side of the site, I can count several things wrong with the above post. Store bought lights come with 600 hour bulbs. Please do not sell these to customers. You will be replacing bulbs like crazy on all your houses. Do not use 20 guage store bought wire. you are limited to 2, 25 foot lengths. Cap off emply sockets with caps or plugs designed to do such. electrical tape is an emergency cap only.