Somewhat true.I'm pretty sure that high end fixtures use more expensive leds than the budget options. Well, at least they should.
High end fixtures uses more quality controlled leds than the budget options.
That is all. Cost is unknown to us, we don't know how many $ big name pays for, lets say, 1000 cree leds. We don't know how many $ some random dude from net that sells on ebay pays for 1000 cree leds. All we can see price for which they are selling it.
It all comes down to that big manufacturers have strict quality control, they want xy numbers of leds with same cri, from same bin, and all of xy leds must behave and operate exactly the same, under any given working condition.
To make parallel to, lets say pc world - you can buy memory sticks, 2 sticks, from same manufacturer, same model, same manufactory date. But, they probably wouldn't perform same. In 90% of cases, they do. Or at least, under given circumstances, they appear that they do. Rest is something that manufacturer won't take responsibility, max speed, timings, voltage required to "something".... they can vary from "slightly same" to "not even close to be same"....
BUT if you buy "2xsomething memory sticks" as KIT, then, in any given operating condition, both stick would perform and act identically. No exceptions that could be related to fact that this is 2xsomething, instead 1xsomething.
Big names buys leds as KITS. All of number of leds are the same, behave same, have same cri, have same output, have same thermal solution, have same.... everything. And to repeat, they will perform identically. Anytime, anywhere, anyhow.
Small buyers gets what big simply don't buy. Because lower quality, because they don't need so many of them - that all goes to "insert any name here". So, that our hero "any name here" can buy and get mix of exact same leds that are sold to "big name here", and poor quality leds that will burn out in first second. But, it's ok, because, on 10000000 (imaginary number) of purchased leds, because massive buying and low price, they simply dont care if some % of them are totaly garbage. They will be discarded, used in manufacturing some generic "light units", or sold per piece to random peoples all over the world.
They can't know what quality they get, they don't have interest in testing, comparing, they simply don't care about any of that. That is cheap led. Not always equal to garbage led.
Big names - they do. They demand exact, same, identical leds each time. No exceptions. Because their expensive product depends on quality, and fact that every unit they make MUST be same, perform same. And if, in some weird case, they get from cree (lets say) shipment of leds that don't meet these requirements - that is a BIG problem. For them, and for manufacturer.
I worked in company that make parts for BMW. Engine parts. They produce about 1000 of these parts each day. And shipped to BMW at weekly basis. Each single part is tested, checked, tested again, to be sure that he meet all requirements that BMW have for this part. And all it takes is ONE, just ONE part, which is slightly different, perform some test slightly different, have slightly different texture, color, weight - all in margin of error, which is hard to avoid... and production line in BMW is stopped, they send ALL parts back, they don't have time or will to test and check each part, they pack and ship back all of them. All that is manufactured and shipped to them from last time that error is noticed, until last one. We talk about thousands, ten thousands of parts that is returned to manufacturer, along with serious money fine, along with taking whole business in risk. Of course, not all parts are bad. It can be this only one, one part, but, now, instead of making money of producing and selling new parts, manufacturer have to recheck each single one again, ship it again, total money and time loss....
So...that's why...