Not too many lighting companies that deal with this hobby are making thousands of units. There are a hand full of major websites out there for this hobby, and out of those websites, just a fraction are salt water, then another fraction reef, then another fraction LED
. It's not a giant assembly line with hundreds of workers. It's probably a hand full of people building these things. The chinese companies that are getting into this industry are also in the general lighting industry, which is the bulk of their income. This is why you don't see GE and LG and Samsung, and all the rest getting into it.....it's just not that big. Most of these units we see aren't even built in America. They are subbed out to the lowest possible bidder....IE the Chinese.
I've looked into things a bit and if you look here:
LED Lighting, LED Lighting Products, LED Lighting Manufacturers, LED Lighting Suppliers and Exporters Directory
You can spot some of the fixtures that are out there for major money.