replaced drivers side headlight ,headlight comes on then goes out on 2003 Lexus LS430

is there some other part that could be bad

Asked by for the 2003 Lexus LS430
1 answer
most likely to be the ballast very expensive from lexus but after market ones quite cheap and work just as well (lexus call it a light control computer hence the price)it sits under the h/light behind a plastic cover is a square silver box