Back when I picked up a SWE1, I needed a new light saber and went with this:
After receiving it, it does work great but there are a few differences. The tube is clear rather than green. Actually the bulb is white until it turns on, then it is green. It is a bit shorter, so I had to move it up further in the saber handle (and it still is a little short, but not bad), which is not the greatest fit. It seems to have a little smaller diameter. I'm sure the overall coloring effect is a bit different, but since it wasn't working when I got the machine, I cannot personally tell (YMMV).
Also, the transformer is built into it, so all you need is this part (and the saber handle if you do not have it). I've been very happy with it.