Patent ID: 8779755

Claim:
A test apparatus for a power supply unit, the test apparatus comprising: (1) a body configured to define a space to receive a light emitting diode (LED) and to provide a test environment to test a supply state of power applied to the LED; and (2) a tester mounted in the body to face the LED and configured to detect a flicker of the LED occurring when power supply is abnormal, wherein the tester comprises (3) a sensor configured to detect the flicker of light generated from the LED, and (4) an adjustment unit configured to support the sensor and adjust a distance between the sensor and the LED, wherein the adjustment unit comprises (5) holder member configured to support the sensor such that the sensor faces the LED, (6) a support member mounted to the body by passing through the holder member parallel to a direction in which the holder member and the LED face each other, and configured to comprise a plurality of fixing recesses, and (7) a fixing member configured to be engaged with at least one of the plurality of fixing recesses of the support member through the holder member, thereby selectively fixing a position of the holder member with respect to the support member.