A pair of LED Par38 Aquarium Lights. Size is Par38 but has fewer bulbs than Lots 1 and 2 and consumes less energy. Approx 30 watts. Gently used for approx 6 months plenty of life left. These types of bulbs are engineered to last for years. These fit a standard light socket and can be used with many hanging fixtures. They have 9 bulbs: 6 'cold white' and 3 ~454nm blue, Photos show the exact item and include a 'demo photo' with the lights installed over one of my tanks (top tank).