And who knows what the load factor effects will be in London's West End when all the theatres distort the wave form even more than they do now?
Allegedly even the Hollywood film industry will be in big trouble because the lamps are all made in Germany, and if the mass production of domestic bulbs ceases, they won't be able to make specialist products (and might not be allowed to).
Not to worry! The Chinese will no doubt step in.
Maybe we'll change to 12 volts and use car headlights at home? But how long before we are unable to buy new bulbs for old bikes and cars?