ENERGY-EFFICIENT: The aquarium light features 36 LED, 1000 lumen output super bright but only 21W. TWO LIGHTING MODE: The aquarium Light features 9 blue LED mode, for night and dark environment. 27 white and 9 blue LED mode provide brighter output. EXTENDABLE BRACKETS: The LED fish tank light bar is 14.5 inch in dimension, with extendable brackets, it fit for aquarium from 14.5 inch to 23.5 inch. HIGH QUALITY MATERIAL: Ultra-thin aluminium alloy shell ensures excellent heat dissipation. 5 ft soft power line, long enough for your aquarium and socket. WILDLY USED: The aquarium lighting ideal for aquarium, cisterns, rockeries, pet cages. Could be placed in home, dormitory, office.