A pair of LED Par38 Aquarium Lights. Barely used. These fit a standard light socket and can be used with many hanging fixtures. They have 18 bulbs: 6 'cold white', 6 ~454nm blue, and 6 red. Provides a plant-friendly spectrum. Use approximately 50 watts. Photo is of the exact item and includes a 'demo photo' with the lights installed over one of my tanks (top tank).