Prime 16 HD LED Reef Light - White Body - Aqua Illumination

The Prime 16 HD represents Aqua Illumination's most refined iteration of their best-selling compact reef light. Where earlier Prime models allocated a fixed amount of power per channel, the 16 HD uses dynamic power distribution — unused channel headroom is redirected in real time to the channels you are running hard, so you are never leaving output on the table. The result is a broader range of achievable spectrums without increasing the fixture's footprint or power draw, which peaks at 59 watts under maximum output.

Eight distinct LED types — Cool White, Blue, Royal Blue, Photo Red, Green, Violet, UV, and Moonlight — give you precise control over the spectral composition hitting your corals. The custom TIR lenses are designed to balance intensity and spread, achieving greater than 90% optical efficiency while using a diffuse exit surface to blend adjacent colors smoothly rather than producing hot spots. Peak PAR is rated at 100 µmol at 24 inches depth across a 24" x 24" footprint, which makes this fixture well matched to tanks in the 20–50 gallon range depending on coral placement and light demand.

Control is handled through the myAI app, compatible with both iOS and Android. Scheduling ranges from a simple pre-defined day cycle up to fully customized multi-point programming with independent control of each channel's intensity throughout the day. Multiple units can be linked in a master/slave configuration, so you program once and the rest follow. For users already running Neptune Apex, MXM wireless integration allows AI lights to be controlled directly through Apex Fusion alongside EcoTech Marine equipment — no secondary app switching required.

The Prime 16 HD ships with a 20-foot power cable and includes the Prime 16 HD Power Adapter. Mounting hardware is sold separately — AI offers the Flex Arm for maximum positioning adjustability, a Tank Mounting Arm for a clean rimless setup, and a Hanging Kit for a minimal overhead look. The right choice usually comes down to tank geometry and the aesthetic of the space around the aquarium.