The Hamilton FijiSun 48' 6 X 54W T5 HO Lighting System Upgrade w/ Giesemann Reef Lamps will provide lighting that has a more appropriate color temperature, deeper penetration and even coverage than almost all LED lights T5 HO bulbs are included. Includes four 54W Giesemann Actinic Blue 420nm bulbs, one 54W Giesemann AquaBlue Coral bulb and one 54W Giesemann Super Purple bulb. We've chosen this combination based on our own experience and preferences. Giesemann lamps are some of the best on the market for coral coloration and growth, and this combination will give your aquarium an attractive bluish look with ample UV light so your coral colors will pop. Dimensions: Dimensions: 48.25' Long X 20' Wide X 4.5' High Powder coasted black finish. Two 30 cfm 4' fans (it looks like three, but one is an intake). Durable German mirror finish, anodized aluminum reflector - wraps around each T5 tube boosting light output by 300% more than bulb alone. Four power cords. One for each pair of lamps. One for the fans. Acrylic lens. High performance, cool operating and energy efficient T5 electronic ballasts. Includes adjustable stainless steel cable hanging system and metal legs.