| 摘要 |
PURPOSE: The LED lighting device improves the efficiency for heat dissipation by jutting out the metal heat sink to the outside of tube. CONSTITUTION: The tube(401) comprises the opened partial side. The metal heat sink(403) including the LED chip(402) exposes by the opened crevice as described above. Tube can have the cross-sectional shape including the cylindrical like the fluorescent lamp or square, triangle, ellipse etc. In the light emitting diode light source is the center of the LED fluorescent lamp tube, it is located far away from. |
