So a couple weeks ago i bought a 50W led array off ebay. I ordered the LED and Driver combo and a separate heatsink and 90 degree optic. The LED was listed as 20k color...... but its a cheap ebay LED so i dunno how accurate that color rating is. The parts were shipped from hong kong so it took a couple weeks to get here. I just got around to slapping it all together except for a power source for the heatsink fan. Its wicked bright and the color of the light looks bluish its definitely not real yellow. ...