can you use hps and mh for flowing at the same time????

[woodymanz]

I would like to know if it would be bad to use a 400 hps and a 400 mh at the same time for flowering?

thank you
smoke on...

 

[bombbudpuffa]

I used a mh and an hps at the same time in my last grow. I was happy with the results. Check my sig.