I used a cheap lamp to bring more light for some specific jobs at the workbench. I bought around eight years ago in a B&M shop near our work offices a lamp to use in a small desk in our bedroom. The lamp was reasonably constructed but the base was a crap piece of molded plastic that wear with the time until it broke some days ago.
Well, I thought, why not to create a base to use it at workbench? As its is supported by an embedded metal round tenon of 12 mm (1/2 inch) I had the idea to construct some kind of wood sleeve to use with 18 mm (slightly less than 3/4 inch) holes in my workbench but for my surprise it wasn´t needed as the lamp can be very stable even when its 12 mm tenon is using a 18 mm hole for its geometry. I found close similar lamp at amazon in the US at this link - the same stuff except for the base. Even new it is only 18 USD there (of course I paid considerably more eight years ago in my our country in a B&M shop but after all that time used in our bedroom it is completely "amortized").
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