I sent roget an email n he got back me.
I haven't ordered anything yet though.
I've experienced Chinese doing very submissive but if they can they give a shit on you!
There is unfortunately no way to verify a built-in 5630 chip and usually their strips consists of so-called 5630 or 5730 from Epileds not from Samsung!
Of course, they could actually use SM561c if they wanted, but a first board test from Cobby shows that they probably do not.
I know that
@OLD MOTHER SATIVA has already spoken with his seller because of the results and that the dealer wants to send new 6x22" board samples! The seller swear it up and down it were real 561c diodes, Lol!
Maybe the new ones will be better(with real 561c) and on par with the QB's, but for now I stay warily against this seller...
Not all Chinese suppliers are as serious as Jerry, unfortunately ... Many of them have to learn that they do better business when they work seriously and some backyard manufacturers never learn it.
Have you ever bought one of these chinese multichip bulbs aka cornbulbs? They do not even hold 2 months because of the unspeakably poor quality of the used components...
They do not even hold 1000h although they are given with 50,000h.