I have plenty in 60 and 100v.
The 40 watt ones you can get at vendors like Dey. Mine are 60 and 100.I do!
I keep some "traditional" bulbs around....
Particularly those 40 watt "appliance" bulbs, they're mandatory for use in my kitchen range oven.
Go one in the fridge too.
And I have some test equipment on the bench that uses them also.
My nearby supermarket and hardware store carries them also.The 40 watt ones you can get at vendors like Dey. Mine are 60 and 100.