I try.. :) I have none in the garage. Don't remember if you were in the house but these are in the back room of the house and literally killed everything RF. My garage is 25+' away and it killed the opener Rx completely as well as the neighbors.
Each light now has 2 ferrite chokes on them and its knocked probably 30db off the RFI
Here is a shot of the fan remotes I use, and the garage door opener. This was captured with both remotes on top of the analyzer, inches from the antenna. Note that this is centered at 348MHz and 150MHz wide
Here is the same analyzer sitting on the coffee table, 8+' from the closest lamp.
Pretty obvious why nothing works. Ive seen worse in RV's
Now back to the battery...