Radion XR15 G6 Pro LED Light Fixture - EcoTech Marine

The Radion XR15 G6 Pro represents the latest iteration of what has become the benchmark LED fixture in reef aquarium keeping. EcoTech Marine's sixth generation brings a redesigned LED cluster, a new HEI2 (Hybrid Hemispherically Edge Illuminating) optical system, and the addition of 395nm UV diodes — changes that increase both raw output and the depth of coral fluorescence. The result is a fixture that covers a 24×24-inch recommended footprint with even, consistent PAR while maintaining the slim 1.5-inch profile the Radion line is known for.

The HEI2 optic system is the most significant engineering change in this generation. By modifying the primary LED lens and integrating it with the geometry of the existing HEI secondary lens, EcoTech expanded the beam angle from 110.5 to 126.3 degrees. That wider spread causes light to reflect off aquarium side glass and illuminate the undersides of coral colonies — two effects that reduce fixture count requirements on larger systems. The G6 Pro's 50-diode array spans eight color channels including cool white, royal blue, blue, violet (430nm), three UV bands (395nm, 405nm, 415nm), warm white, red, and green, giving the fixture the spectral range to run proven programs like the CoralLab AB+ without compromise.

The Pro variant is distinguished from the Blue model by its balanced, full-spectrum diode mix — a configuration that replicates the output character of metal halide lighting and is why the Pro is the fixture of choice in public aquariums, aquaculture operations, and coral spawning laboratories. For the home aquarist, this translates to a light that can be tuned for both SPS growth and aesthetic color rendering without sacrificing one for the other. EcoTech's library of pre-built Mobius programs — including the widely used SPS AB+ schedule — means new users can achieve reliable results from day one.

Control is managed through the Mobius app (iOS and Android, free) via local wireless connection. No hub or external controller is required to program full photoperiod schedules, weather simulation, or moonlight cycles. For aquarists running a Neptune Apex system, MXM integration brings the XR15 G6 Pro under direct Apex Fusion control alongside EcoTech and AquaIllumination pumps and lights, eliminating the need to manage separate apps. The fixture ships with a power supply, power adapter cable, eyelet mounts, and a microfiber cloth, and it accepts all current-generation RMS mounting hardware including single-arm kits, multi-light track systems, and hanging kits.