| 摘要 |
PURPOSE: An LED lighting device is provided to increase cooling power by circulating external air into the interior of the lighting device. CONSTITUTION: A first substrate(100) includes a first LED(110) on the upper side. A second substrate(200) includes a second LED(210) on the lower side. The upper part of a heat radiation member is combined with the first substrate. The lower part of the heat radiation member is combined with the second substrate. The heat radiation member discharges heat generated in the first and second LEDs. A socket applies external power to the first and second substrates. A first light transmitting part(500) emits the light from the first LED to the outside. A second light transmitting part(600) emits the light from the second LED to the outside. |
