S
Shrubs
Guest
3 feet above the grow is too far for 600 lamps IMO
as far as your image issues you need to cut the file size down to under 1.5 mb to upload
It may seem like a lot of space, but 3 feet with a 600 watt lamp is right where you need to be. It's not really an opinion. I can show you with numbers if you would like. As far as your average 600 watt lamp goes you should be receiving 90,000 Lumens at 1 foot, give or take. this means at 2 feet you have 22,000 and at 3 feet you have 9,900. 10,000 Lumens is right where you want to be. Anything over that is overkill. My results speak for themselves.
EDIT: I upload photos directly to iPhoto and from there directly to the website. It says the files are too large. Can't really do anything to change the file size in iPhoto as far as I can tell.