im runin two 250w bulbs a eye hortilux -hps and a phillips cmh
i spin my pots a 1/4 turn a day the fifth day i rotate the pots position under the diff lights
we rotate clockwise one position so lots of movement going on for me to work at 500w multi spectrum
to me the best of both bulbs i tell everyone you do whuts best for your setup -do you not the next man
gluck
I an I