Home depot is out of this Error Page
I asked chat gpt but it send me something completely wrong. I’ve found other similar bulbs, but they are 24 inches, not 22.5 inches like this Home Depot version. I thought that may be too big a difference to fit.
Thank you for any suggestions.
This or this maybe. My quick search suggests that a 24" bulb is also a 22.4" bulb but with the extra length added by the plug portion.? 
Also !Welcome!
Sorry for the late reply but you are right, thank you for the help!
1 Thank
You could do a lot better if you switch out the existing array for an LED array. I had a similar lamp over my kitchen table. It used two U-shaped fluorescent tubes. When the ballast died I switched over to using 12V LED strips. You do need to use an LED driver to convert house current to 12V DC but the conversion would be way less than buying the replacement tubes shown. I’ve uploaded three pictures to show what I did.
I mounted the strips on a piece of coroplast (like corrugated cardboard but made of plastic) but could have mounted the strips directly to the base of the light. If I were to do this today I would use COB LED strips instead. A 5 meter roll costs around $12 and the driver less than $10 on eBay.
It would be hard to find T12 U shape today, I used to have hundreds of fixtures with those, (2x2 with 2 bulbs) even 10 years ago it was next to impossible to find those, but T8 work just as good, we would put t8 instead it worked and fit in sockets just fine, only thing was the clip on the opposite side, but we used paper clips to rig the clip it held the bulb. Of course you have to match the wattage, or it would flicker. As far as size, pay no mind, some are a bit longer, but it does not affect neither their operation nor fit in commercial 2x2 fixtures, they are pretty much standard, the only different some have 4 thin pins, others 2 fat stubs. watch out for that.
I was gonna suggest an LED replacement for a Circline bulb, for symmetry.
4-pin plug, only 2 pins are used for AC (snip off the other 2), just use the ballast to match. Eg, if both are 15W, you’re good, else just get one to match.
Can just use sticky tape to hold the bulb in place, else Velcro tape if you want it to be removable.
The little beasties last nigh forever, so real “need” to be removable.
Thank you all for the replies. I found this at Home Depot, https://tinyurl.com/nhdpdef8
I didn’t even know I should check that the wattage is correct, but it doesn’t flicker, so I guess this works. Thanks again.
Good on you for keeping it fluorescent. So many people just discard old stuff indiscriminately. A lot of the old fluorescent ballasts pre 2000 and the bulbs from the same era are top notch quality and I have seen examples last 30 or 40 years. Not to mention the quality difference in the fixture itself (better usually) and the fact that it is not made by slave labor in a foreign country (union made). once this most likely Chinese bulb you got dies look at Ebay and see if there is any vintage U-Bend lamps. the oldies are goodies.