Fixture · Ecotech · LED puck
Ecotech Radion XR15 G6 Blue
Same hardware as the Pro but fewer LEDs in the cluster — saves $100 if you don't need red.
At a glance
- Max draw
- 90 W
- Coverage
- 18″ × 18″ at 7″
- Mounting height
- 7″
- Street price
- $400
PAR at depth (μmol/m²/s)
| Depth | Center | Edge | Notes |
|---|---|---|---|
| 6″ | 490 | 180 | |
| 12″ | 310 | 115 | |
| 18″ | 190 | 70 | |
| 24″ | 115 | 45 |
All readings corrected for underwater use. Center = directly under fixture; edge = at the 18″ × 18″ footprint edge. PAR varies by individual fixture setup, mount type, and tank glass — use these as a sizing baseline, then measure with your own meter.
Spectrum channels
- uv
- violet
- royal blue
- blue
- green
- warm white
- cool white
Best for
- Blue-leaning SPS
- Budget Radion
Pros
- + Cheaper Radion entry
- + Same Mobius app
- + Same build
Cons
- − No red channel = limited spectrum tuning
- − Marginally lower peak PAR
Where to buy
Affiliate links
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PAR data source
Reef2Reef XR15 G6 Blue PAR thread.
Next steps
- Correct your PAR meter reading using the PAR underwater calculator — uncorrected, the Apogee MQ-500 reads about 24 % low underwater (×1.32) and the older MQ-200 about 7 % low (×1.08); the MQ-510 corrects itself.
- Convert peak PAR to DLI with the DLI calculator — that's the metric corals actually care about.
- Reference the lighting guide for PAR targets by coral type.
Last reviewed