Looking for a suitable driver - 12V input 3V output (max 7A LED current)

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pwd
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Location: Canada
Looking for a suitable driver - 12V input 3V output (max 7A LED current)

I have a bike light with 16 fake XML T6 LEDs in parallel, like this one: https://budgetlightforum.com/comment/1447753#comment-1447753

I want to replace the failed driver with something that can handle 12V input, 3V output (for one LED in series) and can do 5-7A constant current. The trouble I’m having is finding one that actually fits inside the light housing. The maximum diameter the light housing can fit is 35mm. The closest one I could find is this one, but at 20mm tall; it would be about 8mm too thick:

https://www.aliexpress.com/item/32812350460.html

Any ideas of where to source one? Thanks

Edited by: pwd on 11/27/2021 - 16:27