A 7-foot pool table can be adequately lit with light fixtures containing three to five lights. Three lights are adequate for pool tables ranging from 3.5 to 7 feet in length, while five-light fixtures provide enough light for a pool table up to 12 feet long.
A pool table fixture for a 7-foot table can range from about 55 to 90 inches in length. Pool table lights should be installed so that the bottom rims of the lampshades are 31 to 33 inches above the table's playing surface. Pool table lamps typically require 40- or 60-watt light bulbs. Choosing and positioning the lights correctly is important to provide a clear field of view of the entire table.