hps vs. mh

I recently was given a 1000 watt mh light. i have a 400 watt hps for flowering. Would i be better off using the 1000 mh or the 400 hps. Cost of operation included?

Hps is superior over mh for flowering.. plain and simple.

sounds like you just need to upgrad your flowering room to a 1000 w as well...