I've used Spectra LED, Blackstar, HydrogrowLED. All good LED except for Spectra, maybe because of first LED grow, but I did use those to close. Other two are great LEDs to veg and flower with. Now I/ve sold my spectras a long time ago, I also sold my blackstars and my hydrogrowled, also 3 different chinese knock offs, blackstar, magnum, apollo 8 on ebay. Because now I use cheap chinese hydrogrowled grow light, Cheaper then 1 dollar per watt Ill take it. IM able to get a whole bunch of these 210 TRUE WATT and 560 TRUE WATT look a like hydrogrowled that grow just as well. Been using those about to finish my first grow with them. Im not going back to high cost LED until the value shows itself. Until then chinese for me. Only one I would like to try is BlackdogLED Platinum XL-U Light 750 True WAtt 5 watt bulbs. But for the price of one of those, is the cost of my 4 chinese LED 560 TRUE WATT. SO take what you want from that, Im stuck on chinese LED for a while.