The A80 is about half of the output of the A160, but has all of the functionality including manual and external control. The coverage is 14-24Ó and is ideal for the following scenarios:Small nano reefs with a medium light demand (14Ó recommended coverage at 4Ó above the water)Entry level reefs with low light demand (20-24Ó coverage at 6Ó above the water)Large fish only tanks with low light demand (24Ó coverage at 6-8Ó above the water)RefugiumsDesignInnovative heat dissipation allows for fanless, low maintenance, shell-shaped design. Advanced optics create smooth color mixing and a beautiful shimmer.Dense Matrix LED ArrayOur unique, efficient Dense Matrix LED array is built in-house and packs high-power and deep penetration onto a single small chip.EfficiencyUtilizing our carefully designed optics and the Dense Matrix array, the A80 provides the most light per watt of any fixture have built so far.SpectrumsThe result of years of research and testing, our aquarist-specific spectrums ensure vibrant coloration and prolific growth.Advanced ControllabilityUse the dials on the fixture to quickly set the spectrum and intensity for a personalized look or use your favorite 0-10V controller. Kessil Logic maintains consistent output no matter the spectrum. Daisy-chain multiple lights for seamless control from a single source.