| 摘要 |
A LED streetlight capable of expanding scattering range of light emitted in LED is provided to improve cooling efficiency by arranging a semiconductor cooling device and a heat radiation plate in a rear of a LED substrate. A LED streetlight comprises a case(30), a scattering cover(50), a LED substrate(70), and a heat radiation plate(90). A streetlight pole is fixed in the case. The scattering cover transmits a light emitted in a LED lamp into a ground. The LED substrate and the heat radiation plate are arranged in an installation space part(40) inside the case. The LED substrate emits a light into the ground by the scattering cover. The heat radiation plate emits a heat generated in operating the LED substrate. A convex groove(60) is formed on a surface of the scattering cover. The number of convex groove is proportion to the number of LED lamp. |
