| 摘要 |
PURPOSE: A voltage conversion type of an LED lighting apparatus with an improved radiant structure is provided to prevent malfunction and damage to a system caused by the generation of heat as a heat discharge structure is effectively formed. CONSTITUTION: A switching circuit comprises a connector(1), a selective switch circuit(2), a transformer circuit(3), and a MCU(4). The selective switch circuit receives AC power. The transformer circuit converts power from the selective switch circuit into 110V or 220V power source. The MCU(main control unit) switches the selective switch to convert the 110 voltage into 220 voltage. [Reference numerals] (1) Connector; (2) Selective switch circuit; (3) Transformer circuit |
