Kingbrite is a factory distributor (but I don't know if Kingbrite supplies
HLG.) Kingbrite boards are unbranded but with an order of 100 or more, they will put your brand name on the light.
HLG does business with one of these type of suppliers to have their lights built to their specs. As long as there's no mis-advertising going on, the top bin LM301 diode used for the
HLG would also be the same top bin LM301 diode in the Kingbrite boards. They both use Meanwell drivers. They are the same board in more ways than they are different. One company is in the USA. The other is in China. People on this board who have bought Kingbrite Quantum boards have been very happy with them ... and have purchased more since they made their first. I've purchased from them 3 times now.