NICREW 20W Saltwater Aquarium Light, Marine LED Reef Light for Corals, Programmable Timer Controller, 18 to 24-Inch

Features 445nm and 460nm blue, 10,000K white, and RGB LEDs, a higher ratio of actinic blue spectrum LEDs balanced with full spectrum creates the ideal color combination for the saltwater environment
Comes with the day+night controller to adjust the lighting spectrum, simulate a gradual sunrise and fading sunset through the gradual increase and decrease of light intensity
One ClassicLED Marine light will support saltwater fish, live rock, soft coral, and LPS corals. For low light SPS corals, we suggest using two lights
Available in multiple sizes and includes extendable brackets on both ends to accommodate both rimless and framed aquariums length 18 – 24 inch
A glass or acrylic canopy is highly recommended to extend the life of the unit by preventing moisture from affecting it