i'd be questioning the luminaire diodes too.. look into it moer. go to manufactuer website and check their spec sheet. light manufacturers tend to lie a lot, but the diode manufacturer spec sheets are accurate from what i've seen.
driverless... i recall there were some driverless cobs a while back and they were utter trash, so i'd be a bit skeptical... but i'm not doing the needed research for you. you can do that on your own.