malware from that site.

150 watt are very popular for a couple plants. The 400 would be best if you can find a ballast to fit your budget.

T12's put out no light at all. The 24' T12's put out about 1400 lumens which for you means light rays. T5's put out 5000 lumens in 24". My 600 watt HPS puts out 90,0000 lumens. 23 watt cfl's are at about 1500 lumens per bulb. Starting to see the difference? The 150 watt HPS is around 16,000 lumens. You want about 5 to 6k lumens per plant.