HELP- first hydro build and grow

[Gator]

Even when the outside temperature was in the high 90' s the basement temperature never went above 72

[Gator]

I've been running the light at 20% power getting around 150 ppfd so I turned it up to 40% and now the plant is getting around 300 ppfd, just wondering if I should turn it up a little bit more, maybe try to get around 500??