ok ladies and gentlemen. Its light buying day. I hava48x24x60 tent. I wanna scrog just 2 plants. What light should I buy. I can get a 4ft x8bulb T5 that would cover the whole canopy of the plants. I get a 400 watt hps/mh cool tube. The cool tube is 24inches long. I wanna order it tonight. What will give me better coverage and better buds?