Stop Radion Light Spill: How an LED Shade Keeps Light Where It Belongs

Article author: Matthew Withey
Article published at: Sep 10, 2026
Article tag: LED shade Article tag: Radion XR15 Article tag: Radion XR30 Article tag: reef aquarium Article tag: reef lighting
Stop Radion Light Spill: How an LED Shade Keeps Light Where It Belongs

Radion XR30 and XR15 fixtures are powerful lights with a wide beam pattern — which is great for coral coverage, but means a significant amount of light spills beyond the aquarium. That light ends up on your walls, in your eyes, and lighting up the room rather than your reef.

The Problem with Wide-Pattern Reef Lights

The wide spread of a Radion is intentional, but in practice it means you're paying to light your living room as much as your tank. Beyond the annoyance of glare, it's wasted output that isn't contributing to coral growth.

What the Shade Does

The MnN Proto-Lab Radion LED Shade fits the XR30 and XR15 and blocks that overflowing light — keeping it directed into the aquarium where it belongs. Less glare, less light pollution, and a cleaner look for your tank setup.

The PAR-Max Difference

The PAR-Max shade goes further. Rather than simply blocking the overflow light, it redirects it back into the aquarium. This is especially beneficial in the upper water column — making it well suited to mixed reef systems where corals at different heights benefit from broader, more consistent coverage.

Which Shade Is Right for You?

Browse the full range in our Aquarium & Lighting collection — all shades ship Australia-wide and internationally.

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