How long is that strain supposed to go? And what kinda panels are those?
It says in his thread, they are from HTG supply
And I see why I was suspicious
On the 300w page - "Other LED Grow Lights provide the wrong spectrum for plant growth, the spectrums are “close” but not a match to those required for maximum photosynthesis." - "The concept behind the High Power Tri-Band 300 watt LED GROW LIGHT is simple – it uses highly efficient 1 watt LED’s"
You are using 1w LEDs which despite what their page says, are the worst you could have (the better being 2w LEDs the best are 3w although I hear some are starting to make 5w). 1w LEDs also don't run at 1w they run at .5 to .7 (so are you sure there are 428-600 LEDs on that panel?). On top o that they admit that they don't hit the exact spectrum they know to be best, this is because those are not available in 1w LEDs I think (or they are just not trying to sell the best available stuff). Obviously they still grow, and you will still do pretty good. For what you may have thought to be 750w of LED is more like 450-500w of low end/quality LED light (but still way better than a lot of the shit sold on ebay)
I would sell them off if I could and upgrade to the newer 240w Blackstar LEDs (they use 3w but only run on 133w) or the growledhydro panels (their website is a little out of date but they don't mislead people about how many watts their products use, look up the Irishboy grows on this site for a good look at em, I think GLH makes the best/most proven panels).