BeamsWork 36"-40" Single Bright Power LED Aquarium Light Fixture 600 Dimensions: 35.00 x 5.00 x 1.00 Brackets add 0.65" in height Includes 129 LEDs 600 Lumen Super energy efficient .1 watt LEDs 121x 6500K LEDs 8x Actinic 460nm LEDs Uses 13 watts Slim and contemporary light design 2 mode on / off function for day and night use Extendable bracket - 36"-40" max extend Non-corrosive powder coated aluminum housing Splash guard