Fixture · Orphek · LED panel
Orphek Atlantik V4
Industrial-grade panel for serious deep-tank SPS. Sanjay Joshi has tested every Atlantik generation; output is the real deal.
At a glance
- Max draw
- 300 W
- Coverage
- 48″ × 24″ at 10″
- Mounting height
- 10″
- Street price
- $1500
PAR at depth (μmol/m²/s)
| Depth | Center | Edge | Notes |
|---|---|---|---|
| 6″ | 920 | 350 | |
| 12″ | 600 | 230 | |
| 18″ | 380 | 145 | |
| 24″ | 240 | 90 | |
| 30″ | 150 | 55 |
All readings corrected for underwater use. Center = directly under fixture; edge = at the 48″ × 24″ 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
- red
- warm white
- cool white
Best for
- Public aquariums
- Deep SPS systems
Pros
- + Peak PAR exceeds halide
- + Industrial duty cycle
- + Spectrometer-tuned spectrum
Cons
- − Heavy and large
- − Pricey
- − Overkill for typical home reef
PAR data source
Orphek Atlantik V4 — Sanjay Joshi reefs.com test (2018).
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