Patent ID: 8382316

Claim:
An LED lamp comprising: at least one elongated LED unit including a plurality of light emitting diodes; and a first and a second bases for receiving power from outside that are configured to be attached to ends of the LED unit in a longitudinal direction, wherein the LED unit includes a coupler for allowing serial connection of a plurality of the LED units, the LED unit includes a first wiring for serially connecting the light emitting diodes, and a second and a third wirings extending in the longitudinal direction; each of the first and the second bases includes an external connection terminal for connection to an AC power supply, a first through a third electrodes that can be electrically connected to the first through the third wirings, respectively, and an AC/DC converter that converts AC to DC, provided between the electrodes and the external connection terminal; the first and the second electrodes are anodes while the third electrode is a cathode in the first base; the first and the second electrodes are cathodes while the third electrode is an anode in the second base; ends of the first wiring are electrically connected to the first electrode of the first base and the first electrode of the second base; ends of the second wiring are electrically connected to the second electrode of the first base and the third electrode of the second base; and ends of the third wiring are electrically connected to the third electrode of the first base and the second electrode of the second base.