How many plants can I stuff under a light mover?

I have a 1000 watt HPS with a light mover. I'm wondering what's a reasonable amount of plants I can put under it? Right now I have 8 but I'm wondering if this is spreading the light too thin??

Thanks in advance,

if 1000 watts aint enough for 8 plants you are growing some real trees!

I have seen 20 plants under a light mover, in a 6 x 6 foot area under a HPS 1000W.

You can up to double the amount of floor space covered by using a light mover. I'd say around a 10x5 area. The way I'd choose to grow that could be a couple hundred single cola plants, but if you like tree's then you could be looking at as few as just 18.

I have a dual 400w, circular light mover. it adjusts to any radius you like, from 2ft to 8 foot, but potentially more...rater just have two circulars then, lol.

you can see videos here http://www.youtube.com/onenumcat or read w/photos here https://www.rollitup.org/grow-room-design-setup/155955-wind-powered-rotating-dual-hid.html

I'm growing 25 plants, LST's to save headroom...no problem! I guess you may only get 18 depending on strain, growing methods, and your own personal growing style.
I have 25 in a 6wX10dX8h room, but I'm using a 12x12sq table to grow on atm. when they're bigger, I'll remove the table, use the floor and spread em out.
also, using mh only, for the main veg, swap a mh for a hps just before flowering starts(about 2 wks), and, finally, about mid way through the flowering stage, replace the remaining mh for another hps.
but I've got 6 strains, flowering from march 1 to june 1, so I'll have lots of time with dual HPS for some dense nugz!
just a bonus to using a circular light mover with multiple bulbs...not only do you move the light, you mix it also

40 with no problems as long as you remove the lower growth...in my experience anyway, same setup.