Hi.
I was wondering if you can get away with using a HPS light for the entire growth cycle, veg & flowering?

Or do I absolutely need a Metal halide light for the veg?

Thanks for your help.
Johnaldinho Reviewed by Johnaldinho on . HPS Question Hi. I was wondering if you can get away with using a HPS light for the entire growth cycle, veg & flowering? Or do I absolutely need a Metal halide light for the veg? Thanks for your help. Rating: 5