METHODS AND SYSTEMS FOR TESTING A FUNCTIONAL STATUS OF A LIGHT UNIT

摘要

A method for testing a status of a light unit (202) is provided, wherein the method includes electrically coupling the light unit to a controller (204) and transmitting a negative voltage (210) from the controller to the light unit. The method also includes detecting at least one of current and voltage passing through the light unit and determining a status of the light unit based on at least one of the detected current and detected voltage.