The Neptune Systems GRO LED Refugium Light is designed to deliver efficient, targeted illumination for macroalgae growth, supporting natural filtration and nutrient export in your reef aquarium. With 84 LEDs optimized for photosynthesis, a wide rectangular form factor, and a clever pipe clamp mount, the GRO ensures strong, even light coverage exactly where you need it—without wasteful spillage. Compact, water-resistant, and easy to install, this 20W refugium light is an ideal solution for growing Chaetomorpha and other common macroalgae.
Key Features
Optimized Growth Spectrum – 84 LEDs tuned to 455–460nm and 620–670nm wavelengths for maximum photosynthesis.
Efficient & Even Coverage – Wide rectangular design distributes light uniformly to promote thick, healthy growth.
Water-Resistant Build – IP64 rating makes it safe and durable for sump environments.
Pipe Clamp Mount – Clamps securely to 1–1.5" OD plumbing (fits standard 3/4"–1" PVC pipe).
Plug & Play Setup – Connects directly to DC24 ports on an Energy Bar 832 or 1LINK module with step-by-step Apex wizard setup.
Standalone Option – Can run independently with an optional 24V DC power supply—no Apex required.
Supports Natural Filtration – Helps reduce excess nutrients, stabilize pH, and support beneficial micro-fauna.
Benefits
Encourages nutrient reduction and natural filtration through macroalgae growth.
Provides a habitat for micro-fauna, boosting biodiversity and creating a food source for fish and corals.
Helps stabilize aquarium pH with reverse daylight photosynthesis (RDP).
Promotes abundant, healthy macroalgae growth with less power consumption than traditional refugium lights.
