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

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.

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.

All the ones I received including replacements had the metal flaking off the fins inside the glass and coating the inside. No way to fix and ended up just getting a refund.

Simple radiometer. I had one when I was a kid. Apparently nobody knows how to manufacture one that works. This one did not move at all in direct sunlight.