| 摘要 |
<p>The present invention relates to a LED lighting device which is equipped with two converters to be operated circularly so that durability of condensers can be improved and maintenance costs can be reduced. The LED lighting device comprises: a body case which has an opened top surface and an inner space; a PCB substrate which is placed on a base portion of the body case and has a plurality of LED devices mounted thereon with a predetermined interval in between; a light diffusion plate which is coupled to the top surface of the body case and diffuses light emitted from the LED devices; a fixing frame which is coupled along the edge of the LED devices to fix the light diffusion plate to the body case; and first and second converters which are arranged at the back surface of the body case to convert current and supply the converted current into the LED devices and are operated circularly by controlling of a micom.</p> |
