if they did i would have some like that too. as for shorter lamps from them it would be easy. question, would you leave them on the base or would you rather mount them on the wall? if i was growing in a box i would mount it to the wall, and in that case i would figure out how tall it need to be and cut the pipe off at that lenght. you can get emt or conduit hangers at any lowe's or home depot, to mount it with. to use the base you will have to go at it a different way. i myself don't like the base as it is a weak spot where it mounts. this time you will have to take it apart from the top and move everything down to the height you want. different ones come apart in different ways, so you would have to have it in hand to see how it comes apart, you might even be able to shorten it from the bottom. do you know anything about wiring?