I think I read somehwere that it wouldn't affect brooder lights and ones for specialty needs ie., plant grow lights and I forget what else. Isn't it odd that ONLY China makes those twisty fluorescent bulbs - guess we want to suck up some more with them. Maybe NOT everything seems to be made in China. Heck even New Balance shoes that I bought for many years, because they were made in USA, & also fit well, are being outsourced and now don't fit well and are made of thinner, cheaper materials cost is higher too.