LED Aquarium Light for 12-20 Inch Tanks, Full Spectrum Fish Tank Light with 2… on July 16, 2026 July 18, 2026 Fully Adjustable Brightness & Color Modes. Customize your tank’s ambiance with 5 dimmable brightness levels (10%-100%) and 7 vibrant color options (White, Red, Green, Blue, Yellow, Purple, Cyan). Natural 24/7 Auto Circadian Cycle.