Yiluren Solar Crookes Radiometer Glass Windmill Handmade for Party Home Decoration Gift L (Blue)

works well.could be better built (the black paint and leaves are not pristine looking)

I have always had radiometers in my garden window. When my prior one stopped working, I decided to purchase this one due to the addition of color on the glass. It makes a nice addition to my garden window and looks sharp. Works nicely and is a fun conversation piece. Nice quality and excellent price.

Wasn't sure what to think of it at first, but turned out to be a cool piece to have at home

The triangles are coated in black powder. It does spin and look cool, however now the inside of the bulb is coated with black powder and it there’s no way to clean it out. I don’t feel it’s going to get better and feel that this decor won’t last as the globe becomes more filled with powder.

We purchased three of these radiometers. The main attraction being the beauty of their glass construction. Unfortunately, some aspect of the fabrication process appears to have led to a fairly high rate of failure. After about 3 months, one of these radiometers stopped working properly. This is odd because these are very simple machines, but there you have it. The defective radiometer stopped spinning when exposed to light...unless it was first shaken. But then, eventually, it would stop. It's not clear if this is problem due to the loss of vacuum or if it's because the glass cup that supports the spindle has become worn. Either way, a 33% failure is just to high.