Here is his web site. He gives me a pretty steep wholesale discount. As you can see, his retail prices are high. But look at the info.
It's the shipping that gets you, so a big buy is the only way to get them a lot cheaper. Costs $165 to send just one by DHL. If patient, cheaper shipping is possible. Last picture is prototype.
I have 24 of his non-dimming fixtures for 3 years. From 90 watts to 300 watts. Only had one driver fail and it was a very early unit.
A few years ago I sent Mr_X one of the early panels to evaluate. If I recall, he thought it was a pretty similar panel to the taotronics. I could never import enough of them to get competitive with some on EBay, so I gave up. But that's what I use.
Last picture is the non-dimming 90 watt unit I use when space is a consideration.