Are Your Jansjo Lights Flickering?...

The first one I bought was second-hand from Goodwill and it does that. I figured it was the switch. Since then, I have bought a new one and another second-hand one. Truth be told though, I don't use any of them for my current pic-taking method.

By the way, the first one I got puts out a cooler light which, I think, doesn't work well. The brand new one and last one I bought put out a much warmer light.

Dave, did you remove the switch in the cord?

Every single one of mine. I'll never buy another one.

For those of you inclined to swap the switch out. Here are the instructions I followed (not written by me)

STEP BY STEP FIX FOR A FLICKERING LAMP

Tools: phillips screw driver, wire cutters, wire strippers, hammer, eye protection

Go to a locally owned hardware store, and buy a Leviton single pole cord switch, cat no. 5410, or equivalent. Leviton 5410 Appliance Switch, Feed-Through Switch Rocker, Single Pole, Single Throw, 3A-125V AC, Brown. (Don't buy the pinch kind. It won't work because this lamp does not use standard gauge lamp wire. Also, I can't recommend buying an inline dimmer, since this is an Ikea product we're talking about, and it could easily melt or exude meatball gravy or lingonberry juice.)

Unplug the lamp, and remove the existing lamp switch by smashing it with a hammer. Yes, you have to smash it, don't cut the wire.

Put on safety glasses or some sort of eye protection, and hold the switch sideways (seam up) on something hard and well supported, like a concrete floor or doorway threshold, not a table or countertop. Hammer the switch straight down on the seam. Two or three well placed whacks, and you get the halves to split open enough to tear them apart by hand.

You'll see two lines, one cut, the other continuous. Pull out both lines. Discard and banish all further thought of this defeated carcass of a worthless Ikea switch.

Don't cut the uncut strand of the wire.

Trim the ends of the already cut line, removing the "pinch" connectors. Discard those too.

Strip the insulation from the ends you just trimmed, about 1/2 inch.

Unbolt the casing of the new switch, and you can easily see where your exposed wire ends should go. (Twisting your wire ends before wrapping and tightening under the lead screws helps. The Leviton thing ought to come with instructions and diagram, but you can ignore the polarity issue, the plug used in this lamp is not polarized.)

Put your new switch back together.

According to the person that posted the repair instructions, they are at 6 years without issue.