I have 2 identical two-tier custom made acryilc insulator shelves for sale, which include the flourescent fixtures. The measurements for the shelves are L 30" X W 8" X H 7". Each tier is 3 1/2" high and 3 1/2" wide and will roughly hold a total of 20 small to medium size insulators. You can also place them in front of the first tier. The flourescent fixtures take the standard 24" T12 bulb. The electric cords are roughly 4 ft. long and and have grounded plugs. I will sell the pair for only for $95 which includes shipping.