[time-nuts] [OT] Ikea Lamp

Brooke Clarke brooke at pacific.net
Fri Jan 29 21:07:08 UTC 2010


Hi David:

Thanks for the link.  I like them.  The only problem is that you can not 
order on line or by phone from Ikea and the nearest store is over two 
hours drive away.

Have Fun,

Brooke Clarke
http://www.PRC68.com


David Martindale wrote:
> 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<brooke at 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
>>
>>
>>      
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