Yea, I get it. But I go by the results, period. I could care less what they "say" it does, I just look at the results, I've bought a bunch of Chinese lights over the years, and a lot of American ones also. These are some of the "best" cheap ones I've found, although I certainly haven't tried them all.
I've used single and double ended HPS/MH, I've used black dogs, Galaxdyhydro & Roleadro, COB setups, some of the early Sun Systems, Custom made Generics, Apollo's and these. Anything with full spectrum, supplemented with specific bandwidth for the purpose at hand will do fine. For veg that means blue, for flower, red and UV and maybe some IR bands as well.
I generally keep a veg and flowering room, so they have different needs, and mixes in lights can optimize what's needed. In late flower I might throw in those Roleadros because they add red that helps in the end, (putting results over the top) just make sure to have extra ventilation. There are more than one way to skin a cat, and key is just getting enough of the specific light you require. These lights are only going to get better in time, no question.