The companies plan to produce long-lasting softly glowing lights which is similar to natural night lights to find a way around the ban.
It's a little sad that they are starting that work for that reason...but if they will succeed in developing technology that will make our civilisation more enviromental friendly, I think I can forgive them for doing that with that lowly intention.
Science is always trying to find a way to help man solve lots of problems. I'm happy they've already made a massive inroad into solving this problem. Thanks for reading.
I agree with you @greenrun