i have 2 1000 watt HPSlights an assortment of fertilizers and such and im also growing hydro so yes 5'' a day is possible. i have my lights all about 1-1/2 to 2 feet above plants and are air cooled.
i dont have a camera yet and reccently lost my job so money is tight.....thats why im explaining it the best i can ....until i get more money and another job this is all i have to work with.
lastly i have my lights 24/0 ....