QUALITY LED AND REEF SPECTRUM - 36W high power LED (Royal blue, Blue, White, Violet, U-V and Red) for hygger reef light, professional proper blue and white light proportion, mimic the deep-sea environment, help coral to pop and bring out the colors BETTER HEAT DISSIPATION & NO NOISE - Our seawater lights adopt the upgraded ball bearing fans, which are generally superior to traditional oil-containing fans in terms of performance and life. Ball bearing fans use rolling friction, with a small friction coefficient and high speed, which can bring better heat dissipation and lower noise; And the rolling friction loss is small, so the service life is longer. Up to about 60,000 to 100,000 hours Dimmer & Timer Functions - Time + Brightness + Color adjustable. Set time (TIMER key): 6 hours, 9 hours or 12 hours; adjust brightness (up/down keys): 10%, 32%, 55%, 77%, 100%; switch light color (cycle key): blue, white-blue, full-spectrum white. Just plug and play, and dimmable with touch control, very easy to operate SUPER PREMIUM MATERIALS & APPEARANCE ARTFUL - Aluminum housing dissipates heat faster and is more durable. A custom designed wide-angle optical lens achieves even PAR distribution, perfect for 24"x24" coverage. The Special Anti-rust design flexible full aluminum with oxidation bracket suitable for different size of coral tanks. Oblate base efficiently increase stressed area and protect coral reef tank well. Tank glass thickness: 0.2-1.0 inch BUYING WITHOUT WORRY - The LED Marine light will support saltwater fish, live rock, soft coral, and LPS corals. For low light SPS corals, we suggest using two lights. hygger reef LED lights provide two year quality assurance and 30days free replacement. Any questions from your side will be replied within 24hours. hygger reef light HG171