| 摘要 |
<p>The invention relates to LED lighting technology, more particularly a high power LED bulb which improves heat dissipation effect by improving heat dissipation channels of an LED bulb. The high power LED bulb comprises a holder, a lamp housing and a lamp shade, the holder is internally provided with a power module, the lamp housing is internally provided with a substrate and radiators, LEDs are installed on the substrate, sealed in the lamp shade and connected with the power module, the substrate is provided with a through hole, the holder is of tubular shape and has a sealed end and an open end extending into the lamp housing and communicated with the outside through the through hole, a vent hole is arranged on the holder exposing the lamp housing, and the lamp housing is provided with heat dissipation holes communicated with the outside through the through hole. The high power LED bulb greatly improves heat dissipation effect of LED bulbs.</p> |
