new to growing

I would say one plant was plenty int there mate, 2 at the most

A 250 Deul SPectrum HID lgit willbe good for that size tent mate. Or a mars hydro TS600. Depends if you want to go for LED or HID lighting

@lemsthefarmer do you mean 60 cm or 5 x 5 ft?

i have not purchased it yet what size tent would you recommend for four autos.  

@ned cm tbf prob be a bit  small thinking maybe 80x80x120 i have not got much room 

i want at least four autos a time. that should keep me sorted for a couple of weeks. 

Minimum for 4 plants is 1.0meter x 1.0 meter and the 1.2 x 1.2 is a better choice as it allows a little more room toward the end of the run to work with.

not got much space, so probably going to just go with the two with a 250 HID

@lemsthefarmer honestly with a space issue you can always make a small space bucket. Check em out. A rubber maid container with some CFLs will get you some small plants to go with and they can fit almost anywhere. But a small tent with 2x autos will work. I would go with an HID to make sure you get the best possible buds with only 2x plants. But I'm not sure of the strength of the LEDs at that size so I cant compare to anything.....I also have only grown with the SUN but an HID would. What space do you have to work with in total?

@Lemsthefarmer My small tent is a 32" x32"  5 foot tall  i believe that = 80x80.  I usually run 4 plants in there.  i have scrog-ed in it also.  Its tight but its capable if that is the room you have. as far as lights go a CMH315  works well. or a MarsHydro TS 2000  lots of options can be used.

Its a topo grow tent off Ebay for $63 USD

and the CMH light is iPOWER CMH 315  for  $ 135 USD

just add extraction fan and filter this tent has the opening for the exhaust on top so you  can stick the duct in and keep the fan and filter outside for ia little more head space