| 摘要 |
PROBLEM TO BE SOLVED: To provide an LED lighting device that can form a wiring passage on an arbitrary heat radiation fin arranged on a heat sink and eliminate a central core structure conventionally arranged on the heat sink of the LED lighting device and reduce weight of the LED lighting device and improve heat radiation performance of the LED lighting device.SOLUTION: The LED lighting device includes the heat sink having a plurality of heat radiation fins, and a heat radiation plate integrally connected with an upper part of the heat radiation fins; a light-emitting module having a circuit board mounted on the heat radiation plate and located on an upper part of the heat sink; a power source connection part located at a lower part of the heat sink; the wiring passage formed on the heat sink in order to store wiring for electrically connecting between the power source connection part and the light-emitting module; a slot recessedly arranged on an upper part of the heat radiation plate; and a wiring hole formed on one side of the slot and letting the wiring pass through. |
