Those Jansjo lamps are now on sale at Ikea - £7 each, with either a spring clip or heavy disc for the base. I visited a local branch yesterday, and bought three, after an eternity wandering the seven circles of hell you have to go round before reaching the lighting section near the checkouts.
They seem well suited for lathe and mill, casting a good pool of warmish light - better than the cold blue offered by many LEDs. Each has its own 3W, 4V wall wart transformer, so no trailing wires at mains voltage.
Not available on line in the UK, according to the Ikea website.
Andy.