dont do it,
I had the 70W HPS security light. it cost me $50 and a bunch of headaches. first off the HPS is controlled by an automatic sensor that turns the lights on and off, so U have to find a way to bypass that and hook it up to a timer.
plus unless U can find a way to make the ballast remote, or find a different reflector U wont get great distribution. the ballast went after a week on mine, but that was just my personal experience.
IMHO if U want the best bang for a little buck then U should invest in a 250W HID. Either that or get CFL's without the ballast and all that bullshit.
