When it comes to lights, you need to look at a lot more than just spectrums of light. You need to compare PAR, PPF, PPFD, efficiency per watt, number of diodes, microjoules per square meter per second, all sorts of stuff.
There's a YouTube channel called MIGROW that tests other companies lights and compare them to the best of that size on the market. He usually breaks them down into sareas of light coverage, like 2'×2', 3'×3', etc.
I hope this helps and good luck hunting for a light. I'm looking for a 5'×5' or 6'×6' for flowering right now and it is a lot of work to find the best one on the market.