My ignorance is showing here, but oh well. I'm going to get a ReptiSun 5.0 tube fluorescent UV bulb for my tort. The enclosure is 47" long, so it'll be a 36" bulb. I was a little put off by the cost of specific reptile light fixtures for the bulb, so I figured I'd be smart and get a plain shop light for fluorescent bulbs from a home improvement store much cheaper. But all the fixtures I can find for fluorescent tube shop lights are for at least 2 bulbs. Can I run just one bulb on a shop light meant for 2? Even if it worked, would that be unsafe with electrically "active" sockets being unused?