vert grow

Hey hey everyone. So my room has been dismantled and probably wont be back up for a while, So my cool tubes and other things are sat doing nothing. My friend who also grows has recently moved and no longer has the space he used to. He was running 4x 600w hps horizontal in an old stone cottage...

Anyone familiar with the Vivosun air cooled hood? I have a 600w mh/hps I want to use for a very grow. Was looking into the bulbs and read that not all can hang vertical there is a bulb model number that has specific letters designated to its mounted orientation, although after extreme...