AquaIllumination's AI Blade Coral Grow 12" draws up to 20 W across 3 channels, named here as myAI names them: Royal, Blue and Cool White. Below is its spectrum with every channel at 100%, read from AquaIllumination's own published graph.
Set its channels in the comparer
Peaks near 450 nm.
Royal blue 49%, blue 31%, green 10%, red 5%, yellow 3% and violet 2% of its power.
With JavaScript on, type the light's height above the water and the coral's depth and the page works out a range.
This is an estimate built from a few hobbyists' readings, not a measurement. The range is wide on purpose, because those readings disagree, for some lights by nearly two times, and one owner's corals burned at a step the low end called small. It is for the spot right under the light; anywhere off to the side reads lower. A PAR meter reading beats it every time. PAR here is in µmol per square metre per second, the unit a PAR meter reads.
Spectrum read from AquaIllumination Blade Coral Grow product page, graph titled 'Baseline Spectrum | All 100%' (its last label is printed 750 where 760 belongs, as on the Glow's). See the graph. The split between channels is a model fitted to that graph. Added together, its channels match the graph closely (R² 0.998), which shows the total fits; it can't show each channel is right.
AquaIllumination's own page for it: AI Blade Coral Grow 12".
Where its PAR range comes from: Reef Builders' in-air test of a 21 in Blade Coral Grow at full draw: 76 PAR at 24 in at the grid's peak, 73 at the centre at 23 in. Two owners' in-tank readings of Grows give the low end. AquaIllumination's own chart for the 12 in, 30 to 40 PAR at the centre at 24 in, agrees.
reeffrags.com is not affiliated with or endorsed by AquaIllumination. The graph is theirs; the reading of it, and any error in that reading, is ours.
