Kikkerland Solar Radiometer

Very cute scientific novelty.

Although it was more expensive, at least I’ve got a product in hundred percent condition. Works very well and it’s quite amazing to see it spinning as the light gets stronger. Even if you shine a torch close to it it’s still moves. Very clever product.

I bought this unit about 1 year ago. From day 1 it never really worked properly and always needed a tap to start it spinning. Six months on it does not work at all even in the most strongest sun light. I contacted Kikkerland who were not at all interested in helping me.I advise anyone not to buy this, or if you do, it won't last due probably to poor construction.

beautiful modern version. but failed after a year. does not turn anymore

This is a lovely thing to have on your desk. Looks great and works as described - the moment there is a bit of sun it rotates non stop, slowing down when there are clouds, rotating faster when there is more sun. An absolute must have :-)

Looks good, but even in full sun it doesn't start spinning itself. I just to give it a nudge or shake, and then it's off. So most of the time it just sits in the windowsill disappointingly doing nothing.

Really good and stable without a danger of toppling over . avoid the ones with glass legs as they topple and break.The vanes spin really fast in brought sunlight. Spin fine even in low light.Love it.

First off, make sure the globe "stem" is fully pushed into the wooden base otherwise it will fall out. Twisting the globe and base helps to push them together.Mine worked great - for a few months. Then it needed a nudge to get it going. Finally, it stopped turning altogether. I suspect the needle-point bearing gets worn over time.Shame as it looks great - I like the wood/glass combination.