Unfortunately, China has garnered a very bad reputation for lying it's ass off about LED specs. And most USA retailers are simply selling Chinese made lights. Until independent labs are used to confirm, I recommend an alternative such as HO T5s using aquarium bubs, which are available in similar nms to LEDs. Plus you get >twice the coverage for less money
The biggest issue with HO T5s is bulbs in the 600-700 nm range. This a good place to supplement with LEDs. Alas, many LED companies are simply putting red lenses on white bulbs. Over time the red lens cover fades. LIES LIES and more LIES. Buyer Beware.