400w hps ideal for 4x2 sog grow???

[gainesvillegreen]

the reason i said 48 was because i want to do a ebb n flow set up ......

4-1x2 custom made trays
4-totes
4-water pumps
48-2 gallon grow bags
expand clay


my plans were:
1 tray for 0-2weeks
1 tray for 2-4weeks
1 tray for 4-6weeks
1 tray for 6-8weeks ...clone from my mother plants with no veg time and just go straight into flowering to just have 1 cola....i wanna try to harvest at least a pound every month....wanna stock up as much as i can before summer gets here

I don't like being the harbinger of bad news, but a pound a month with a 400w HPS is not going to happen. If everything in your system is well-tuned, you could expect as much as 0.5g per watt, so about 200g a month (with everything running perfectly).