I've used a couple of different task lights on my workbench and they were both a PITA. First, they stuck into a hole in the back rear corner of my workbench so they were constantly in the way between me and tools hanging behind the bench, plus both had some really stupid stops on them that prevented them from extending very far, and I frequently needed to move my work to be within reach of the light.
I decided to try some kind of gooseneck light, but many of those were designed to clamp onto the edge of a bench, and since I was going to have to do some modification anyway, I made my own.
I bought an 18" length of gooseneck from a company called Snake Clamp. I re-tapped the ends for 1/8-27 NPS (this is the thread that is used on lamp parts), and use some lamp nipples to connect a track-light head I had laying around, and rigged up a mount from a piece of oak scrap that would attach to a piece of T-track, and mounted the T-track to the edge of a shelf in the cabinet behind my workbench.
So far, this is working great. Easy to push out of the way or even remove it entirely if necessary, and with two strips of T-track on the edge of this shelf, I have a couple of different places to mount it. The track light "head" is also nice as it's a tiny fraction of the big shade that existed on my old task light. The MR16 LED bulb that was packed with the fixture was equivalent to about a 35-watt halogen or incandescent bulb and was a tad dim, so I replaced it with another LED that was the equivalent of a 75-watt halogen bulb. Plenty of light now.
One thing to note if you do this rather than modifying an existing gooseneck lamp; the vendor states how much weight the gooseneck can support when holding something straight out, parallel to the floor. What becomes quickly obvious is that this is where the gooseneck is strongest. As soon as it's bent, the weight-carrying capability is probably cut by 1/4 or 1/3. The point is that you want the light on the end to be as low in weight as possible. This tracklight is a bit heavy, so if I was buying one for this I'd probably go for one of the more "open" designs.
