BeamsWork 36"-40" Hi Lumen LED Aquarium Light Fixture 90 66x0.5W Dimension: 34.5" x 5" x 1" / 877mm x 125mm x 23mm Brackets add 0.65" in height Includes 66 LEDs Lumen: 3000 Super energy efficient .5 watt LEDs 60x 10000K LEDs 6x Actinic 460nm LEDs Uses 33 watts Slim and contemporary light design 2 mode on / off function for day and night use Extendable bracket - 36"-40" (90 cm - 100 cm) max extend Non-corrosive powder coated aluminum housing Splash guard