reefcalcs

Fixture · AI · Hybrid T5/LED

ATI Straton (Hybrid T5/LED)

T5 + LED in one fixture. Best PAR-spread profile in the hobby — coral colour rivals pure T5 setups.

At a glance

Max draw
220 W
Coverage
30″ × 24″ at 6″
Mounting height
6″
Street price
$1200

PAR at depth (μmol/m²/s)

DepthCenterEdgeNotes
6″700380Hybrid T5/LED — wide even spread
12″450240
18″280150
24″17590

All readings corrected for underwater use. Center = directly under fixture; edge = at the 30″ × 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

  • Hybrid evangelists
  • Even-spread SPS

Pros

  • + Best edge-PAR per dollar
  • + Hybrid spread + LED control
  • + ATI bulbs tuned for reef

Cons

  • − Heavy and tall
  • − Replaceable T5 bulbs every 9–12 months

PAR data source

ATI manufacturer data + BRS T5 hybrid comparison.

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