Maybe the humming I hear is due to old lighting fixtures, but I don't want to replace all of them in my apartment :) I think it's things like this that make ma

Maybe the humming I hear is due to old lighting fixtures, but I don't want to replace all of them in my apartment :) I think it's things like this that make mainstream adoption unlikely. And difficulty of safe disposal (but I'm being optimistic, and we might just get tons of mercury in our landfills if people are fine being negligent).