There are multiple versions, including wall-mount and one that clamps onto the edge of an object like a bookshelf. Here is the family:
http://www.ikea.com/us/en/search/?query=jansjo They all probably have the same LED head. If you don't need a long gooseneck, the wall and clamp versions are the cheapest way to get the head plus a short gooseneck. They give a circle of light with a fairly sharp cutoff at the edge of the circle. Think of it as something that will fit into many of the places where you would really like to have a fiber optic light source, but at 1/5 the cost. The little wall wart is a regulated constant-current supply (not constant voltage), which ought to make the light output relatively constant despite LED temperature changes and wire resistance changes. However, I find that the cheap inline switch has contacts that tend to get dirty or oxidize, and the LED flickers until I flip the switch on and off a couple of times to clean the contacts. If you're going to modify it anyway, install a better switch. I have two of these. One clamp-base is mounted on my computer desk, up high, where it illuminates my keyboard without washing out the monitor. The other has the weighted desk base, and it's useful as a reading lamp as well as illuminating things under the stereomicroscope, and looking inside cluttered equipment chassis. Dave On Fri, Jan 29, 2010 at 8:59 AM, Brooke Clarke <bro...@pacific.net> wrote: > Hi Poul: > > Can the base be hung on a wall? > http://www.ikea.com/us/en/catalog/products/10128734 > > Have Fun, > > Brooke Clarke > http://www.PRC68.com > > _______________________________________________ time-nuts mailing list -- time-nuts@febo.com To unsubscribe, go to https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts and follow the instructions there.