Hi, Rusty!
I'm sorry that neither I (at the moment anyway) nor Doglet can find the website from which we bought all the light bulbs!
And no, it doesn't indicate from whence it came on the bulb itself.
But it sounds from what you say as though you are able to get them from Asda?
If so, you are very fortunate as old-style light bulbs have been unavailable in the shops here for a long time, hence my buying in bulk online.
What sort of door did you and the joiner agree upon?
Are you having a double-glazed wooden door? or just a solid door without any glass? It's impressive having it made to measure!
The day never brightened here - it's looked on the point of rain all day , altho it has remained dry.
This afternoon we went for a long walk in one of the more distant country parks.