help with LED driver substitution please

[rust in the eye]

I have an LED light fixture with a failed LED driver. My searches haven't turned up a replacement having exact spec as original.
I suspect this ain't rocket science and there are reasonable substitutions but I don't know what to buy. The only thing I could learn was that there are constant current devices and constant voltage ones. Mine is constant current, not sure how important this is.
I did contact the manufacturer of the original who offered to "build one" at an exorbitant price and looong lead time.

 

[cybrdyke]

First thing to look at is voltage. Yours is 120v. That part should be easy.
Next is Watts. Yours is 19w, but anything up to about 40w should work OK.
Next is current. Yours puts out 460mA. This is what controls how bright the light gets. You want this to be pretty close to 460mA, so that this fixture brightness matches any others, if there are more than one.
Those are the specs that you should look for in a replacement. Be mindful if you need dimming to make sure your replacement is dimmable.
The challenge you're gonna find is that drivers like the one you have are normally in fixtures that are considered disposable. The drivers are not often replaced. It could be hard to find one with those specs in a plastic case with those tiny dimensions.
Good luck
CD

 

[walta]

This one on Amazon seems to meet your requirements

450 mA constant current

Voltage range 21-43V

https://www.amazon.com/gp/product/B01MUDW4AK/?tag=atomicindus08-20

I bought a 1600mA one in March it has worked well for me.

Walta

 

[Zeke]

Just a quick note: I had a blinking dimmable 4" new construction LED insert start blinking at higher wattage (high on the dim) so I spent way too much on an exact driver. Still blinks on and off. So I'm guessing it was the LED board all along. Can't fix that.