I bought a house that has under the cabinets LED lights. One of the units go on normal and bright but after about 10 minutes begins to dim. they never go completely off (or I've not let them on long enough to do so). I turn the unit off and later turn it on and it is bright but begins the same cycle.
Lighting – Why do the under the cabinets lights dim after they are on for a short while
lighting
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Best Answer
The internal power supply, probably a 120V to 12V stepdown transformer, is starting to go. It is probably located at the end of the fixture and it's doubtful you would be able to fix it. Best bet is to replace the fixture.