I was reading my Mother Earth News this morning when I found this…

There is a "Warning" from a reader who wanted to give everyone who raises chickens a heads up.
He bought a GE light bulb last year for heat to keep the chicken water from freezing. After the first night using it, he went out the next morning to find 19 dead birds. He sent 4 of them to UofNH extension where a vet confirmed they had died of toxic fumes given off by the light bulb….which it turns out was coated with Teflon, aka PTFE!
This was a GE Rough Service Worklight 100W.
GE tried to settle with him for $782 as long as he agreed to not talk about the incident….he sent their check back & is spreading the word.
Sylvania also makes the same bulb but their's has a warning about the fumes on the package with a red stick on label: "This product contains PTFE, when heated it creates fumes potentially fatal to confined birds."
GE's bulb package did not have that warning when he wrote his piece for the magazine.

So be sure to spread the word to anyone you know who raises chickens!