Fixture · Orphek · LED bar
Orphek OR3 150 Blue Plus
Long supplemental blue/violet bar. Pairs with halide or LED puck to fill in the violet end of the spectrum.
At a glance
- Max draw
- 75 W
- Coverage
- Supplemental — 60″ bar
- Mounting height
- 4″
- Street price
- $300
PAR at depth (μmol/m²/s)
| Depth | Center | Edge | Notes |
|---|---|---|---|
| 6″ | 240 | 200 | |
| 12″ | 150 | 125 | |
| 18″ | 90 | 75 | |
| 24″ | 55 | 45 |
All readings corrected for underwater use. Center = directly under fixture; edge = at the Supplemental — 60″ bar 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
Best for
- Supplemental colour pop
- Hybrid setups
Pros
- + 60″ length covers full 6 ft display
- + Strong UV / violet output
- + Quiet
Cons
- − Not a primary fixture
- − Limited spectrum range
PAR data source
Manufacturer + community readings.
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