ATI Dimmable Sunpower – 36″ 6x39w w/Controller – The ATI Dimmable SunPower has been delivering proven results worldwide for more than five years. We recommend using ATI T5 bulbs in your fixture, which will help you produce significantly more light than most other T5 fixtures of the same size. The Dimmable SunPower produces an even blanket of light that bathes the entire tank in light, producing far fewer shadows and little-to-no hot spots. T5 lighting is uniform and intense, filling caves and overhangs and providing corals in darker areas of the tank the light they need to thrive. Bulb life and bulb output are improved with our active cooling system to keep your bulbs at a more optimal operating temperature. Direct the light where your corals need it most with the 98% reflective miro-silver bent parabolic reflectors. Pick the T5 bulbs that are best for your needs, insert them, and plug in your fixture. ATI bulbs work in almost any combination to effectively grow corals, and since they’re not a point-source of light like LEDs, you don’t need to worry about adjusting different color channels, meaning there’s less risk of burning your corals. ith 10 individual set-points, the built-in controller produces much more realistic dawn-dusk and daylight simulations than non-dimmable fixtures. The controller automatically adjusts from one set point to the next making programming a breeze and eliminating any intensity jumps. Our results speak for themselves. LEDs may have a great reputation for efficiency, but our T5 fixtures use a comparable amount of power. Make the switch with confidence. The Dimmable SunPower produces a beautifully blended color spectrum, creating uniform light and color throughout the tank. A non-diffused LED fixture, on the other hand, produces district bands of colors resulting in uneven light and color throughout the tank. The Dimmable SunPower uses T5 high-output fluorescent bulbs that are available in a variety of colors that, when combined, allow you to achieve a unique color to suits your aquatic life and personal preferences. These bulbs produce a blended spectrum directly over your tank. Whereas, many non-diffused LED fixtures* utilize various points of individually colored lights. When these lights radiate over your tank and hit the flowing water below, you may see what is commonly known as a ‘disco ball’ effect of colored lights and shadows moving over the coral and sand below.