Ok your reflectors are square but that is the only difference I have done my homework bro. chip on board is what they are calling this design short form COB sol is using the same epileds that mine are using you have round heat sinks so does mine the only real difference as pointed out are the reflectors
What about the BIN numbers on the DMA chip? Do you know if they follow the same standard as regular single "bulb" LEDs? Not bad-mouthing your unit, just serious inquiry here for my own learning!