My Jandy LED light is less than 3 years old and has stopped working. (it has correct voltage but only very dimly glows)

I have tried Jandy customer service but gave up due to no response.

My question is will another brand of light fit in the niche that is there now or do i have to replace with another Jandy light.

Does anybody fix these lights? I don't have much faith in the brand at this point.