| 摘要 |
<p>One implementation of the present invention may provide an LED lamp including first to fourth external connection pins and using two external connection pins among the first to fourth external connection pins as an input terminal and an output terminal, respectively. The LED lamp comprises a rectifier circuit unit for converting an input alternating current to a pulsating current; a smoothing capacitor for smoothing the current having passed through the rectifier circuit unit; an LED array operated by the current smoothed by the smoothing capacitor; and a protection circuit for blocking a current flow in a path when the smoothing capacitor shorts, the protection circuit being formed on the path including the input terminal, the smoothing capacitor, and the output terminal.</p> |
