Apollo UFO vs HHE COB: LED Grow Light Experiment (Hydroponic Lettuce)

I’ve been using my Apollo Horticulture UFO SMD light for nearly a year now. After acquiring my latest LED grow light by HHE, I saw an opportunity to run some side-by-side comparisons. The HHE COB (84w) light had been labelled as “200w“ while the Apollo (109w) is still labelled as “180w“. Using bogus wattages creates a certain expectation on the part of a consumer. If the HHE is touted as 200w then the performance should be 11% greater than a 180w model. But is this the case? I devised a simple, unbiased ex