There is or was an enterprising individual in Germany selling incandescent lightbulbs as heaters - therefore making them apparently legal.
It’s going to be a LONG time before LED bulbs work in all of the temperature extremes that an incandescent bulb will work in. CFL’s? Forget it.
Here’s the original article on “Heat balls”
A bright idea! The EU may have banned old-fashioned bulbs, but sparky entrepreneurs have alighted on a ruse to keep selling them