Behold Das Heatball:
Reuters reports that Rotthaeuser (the German entrepreneur) studied EU legislation and realized that because the inefficient old bulbs produce more warmth than light -- he calculated heat makes up 95 percent of their output, and light just 5 percent -- they could be sold legally as heaters.
Maybe we can learn a thing or two from The Krautz.
Reuters Article: HERE
Heatball Website: HERE
Boq



We use incandescents in the hen häuser for that purpose in the winter - heat. Plus the light extends the "day" for the hens so they still lay.