We have enough 40-60-75-100 watt light bulbs to last until global warming becomes real...sometime around the 22nd century.
In addition, I have several dozen 120 watt internal flood lights which are very hard to find and are currently priced higher than gold.
I like my current light bulbs, and I am going to keep my current light bulbs.
PERIOD....EXCLAMATION POINT!!!!
Don't worry, the collapse of western civilization, triggered by the long-term failure of the power grids, will make light bulbs a distant memory long before that.