northerndarkness;951936; said:im sure someone else has figured it out, but you can buy metal halide "security lights out door rated 170 watt for about 120$ at home depot with a switchable ballast for multiple voltages, 120, 220, etc, just wire it and set it up and save a butt load of money.. im going to be adding one soon i have the light, but the bulb they give you is about 4000k which is far to yellow appearing to me
I may be mistaken, but aren't those fixtures designed to run floodlight style bulbs? I am unsure that a mogul bulb would be as safe to run in that fixture. But it looks like you are researching them and will make a good decision when the time comes. Good luck. If you do go with this fixture, be sure to post pics when it is up and running on your tank.