Led lighting apparatus

An LED lighting apparatus comprising:

• a rectifier circuit;
• a first light-emitting circuit connected to said rectifier circuit and containing a single or a plurality of LEDs in which current begins to flow when an output voltage of said rectifier circuit exceeds a threshold voltage;
• a first bypass circuit having a bypass path for making the current flow to said rectifier circuit without passing through said first light-emitting circuit, and a detecting unit for detecting the current flowing through said first light-emitting circuit,
• a second bypass circuit connected to said first light-emitting circuit;
• a second light-emitting circuit connected to said second bypass circuit and containing a single or a plurality of LEDs in which current begins to flow when the output voltage of said rectifier circuit exceeds a threshold voltage;
• and
• a current limiting circuit for limiting the current flowing into said second light-emitting circuit,
• wherein when the current detected by said detecting unit exceeds a predetermined value, said first bypass circuit shuts off the current flowing through said bypass path.