yes i had to go look it up. you beat me to it.
http://fishbowl-innovations.com the light bars are sleeved with glass. the clips go on the glass just inside the end caps and you can rotate the sleeve to get the desired intensity or effect. on mounting the clips be carful to use a screw if you do that is small enough to go below the curve on the clip otherwise you may scratch the glass tube. i dont think it is very thick. must be 8 to 10 inches from mh.. hope this helps