What did you compare them to.
The first couple lights I bought because, for the specs and price they were the best buy for led at the time.
The tents I had at the time were quit a bit bigger than the footprint the lights were designed for which was fine because I needed room for my fan, humidifier, etc.
As the plants finished veg and went into flower I pulled the equipment out and pushed the plants to the edges of the tents well out of the
recommended coverage area. They all flowered fine and there was a slight difference from the buds on the edge compared to the
middle, but not no much that it mattered.
The test wasn't done with meters and testers granted, but every light did more than I expected, so believe me or not, it's up to you.