My biggest complication is setting up a photon pump with a COB, there are a lot of pre-build 5w single-unit led photon pumps out there, I figure you could just get a really narrow lens, and mount the inlet of the fiber at the focal point, but then I feel like that's going to be diminishing returns. I would like to have a multi-stranded cable polished really well, roughly the same size as the die, and then bodge the things together, as heat shouldn't be an issue as most of the cables are meant to actually take some abuse. I was thinking like a small-suitcase sized mirrored-resonance chamber that houses the cobs, heatsinks coming out of which with a 6in. duct fitting on the fins of the sink. Then cables coming down onto a vertical post, spitting super high fidelity COB feed 360 degrees around. Kind of like a caduceus.