Thanks so much for your suggestion. I just picked up the light yesterday, and the place I bought it from might actually have a laser thermometer. They also have the fixture I bought set up in the shop, so I'll have to ask them about the exact temp (she said "only a little warm" when I asked yesterday). Thanks again!Already have the fixture? They have IR laser thermometers at most hardware stores these days. They are usually near the electric levels. You could find out just how hot YOUR T5 fixture gets, and decide whether a vinyl gutter fixture will be able to retain that heat. And you can just use it, and return it the same day... a little cheap, but the economy is what it is.
Thanks! I wasn't planning on using LEDs, but I was thinking of trying to cram a small cfl in there (plenty of space left in the hood) to balance out the color rather than just replacing the bulb (the one it came with is intensely lime green). But I'll be sure to add plenty of vents either way. Thanks a bunch!Given the chemicals in vinyl, I'd ventilate the gutter cover. A couple of holes in the top, and a couple of holes in each end would give you some thermal ventilation.
If you were going to put in moon lighe LEDs, then I'd very much suggest a ventilation fan too since they can run off the same power brick.
Thanks for the suggestion! I was thinking of doing the side fan with slits opposite, if I did need one. So far the lamp doesn't seem to get too hot, though, just a little warm. So I'm thinking vents are going to do just fine. Thanks again!If you add a fan I would either mount it in one end and put slits at the other so air gets sucked through lengthwise, or add it to the top in the center with slits at both ends so air is sucked in the ends and exits the top.