Ubomi bokukhanya kwangaphandle buxhomekeke kwizinto ezahlukeneyo, kubandakanywa uhlobo, umgangatho, indawo yokusetyenziswa, kunye nokugcinwa kokukhanya. Ngokubanzi, ubomi bokukhanya kwangaphandle kwe-LED bunokufikelela kumawaka ukuya kumashumi amawaka eeyure, ngelixa isiko ...
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