An ultra stylish and unusual light bulb shaped radiometer. Featuring a chrome finished wire stand and screw end lightbulb style base and a filament shaped central vane. This makes a unique and intriguing gift to sit on a desk or table. Radiometers measure light intensity by spinning in accordance with the level of light which hits the small square vane panels. The faster it spins, the more energy is being recieved. Providing a hypnotic spectacle.