Here is the kicker , cree leds are the ones to specify . There is no great push in north america to conver t to ledlighting.
If we all converted tomorow the energy companies would go broke due to lack of revenue.
many would be unemployeed. thus the expense to convert slows the process.
If you intend to order any light element from china there is the question of " will it fit your fixture and is it supported by the fixture.
The lighting element you show is 270$ and min order of 10, i would suggest contacting the vendor and asking for a sample .ie) 1 pc to make sure.
I have a customer that purchased 40 x g-23 lights from ray wu , ray sent g-24 by mistake .they do not fit in the fixture , shipping back to china is 500$ Canadian funds.
the lights were 240$ Canadian.
So be very cautious when purchasing from china and get all the info from the vendor you can prior to committing a purchase order.