Well, they are either bad at math or don't know how to write a spec sheet without lying or manipulating, lol... but that isn't unusual.
https://easygrowlighting.myshopify.com/products/easygrow-s800
E.g. they say 1100-some ppfd for a 325w light... but they don't give area of coverage.. without that info you could technically say just 2000ppfd and it could be true in an area about 1/2 the size of the original 1100 value. i can guarantee it's at least 10-15% smaller than 1m^2 to get the 1100-some value, because absolutely grow light goes beyond 3umol/J and that would only be top bin 5000k cct diodes for the most part. (3 x 325 = 975umol/s == it will be lower than that for sure and to get ppfd it is relative to 1m^2)... They suggest a 1.08m^2 area, so just further evidence of either poor math skills, lack of understanding, or pure marketing manipulation.
anyway, could be a good light. like i said the majority lie a bit on this stuff.. Need to know diode count to double check their claims... if around 0.4watts per diode, it;s a solid light with a ~2.7umol/J efficacy neighborhood -- potentially a tade higher if highest bin possible. this would be a bare minimum for a more expensive product.
so, i'd double check diode count and how hot they run it... if approaching 0.5watts per diode, it's just kinda average and 2.5umol/J efficacy or less. at that point, i'd go with pricepoint when choosing between that and a mid-level mars or vipar light. efficacy will mostly determine cost of the product. A CCT closer to 3000K is probably a better option than other choices, too.