We may start doing bigger refugium lights. We did this with the lumenbars for a while, and unfortunately they weren't very well received. I think the next step up would be something in the 30watt range. The 7watt ones we have now do very well. If we were to do a 24" one, it would only replace about 3-4 of the pico fuge LEDs we carry now, so the cost would have to be similar to justify that.
Yeah I have the Trigger System Triton 44 sump and it has a large fuge. Most of the existing lights from the major reefing manufacturers are made for smaller footprints.
I don't really like Kessil fuge light as the cheato ends up growing in a floating mat.
I prefer the spread of a panel fixture. Really leaves me with the black box "grow" lights from Amazon.
I prefer the quality of your fixtures over the no name fixtures.
Just a thought. Maybe you could market it to the "indoor gardening enthusiast" as well.