Lighting apparatus

A lighting apparatus, comprising:

• a rectifier with a neutral node connected to a neutral wire and a hot node connected to a hot wire for connecting to an external power source, wherein a manual switch is placed between the external power source and the neutral node;
• a switch controller connected to the neutral node for detecting an operation of the manual switch among multiple candidate operations, wherein each candidate operation is associated to a set of control signals;
• a set of light sources;
• and
• a set of driver modules, wherein each driver module has a first end connected to the rectifier and a second end connected to the switch controller for receiving a corresponding control signal to drive one corresponding light source from the set of light sources, wherein the driver module comprises a constant current source and a switch unit, wherein the switch unit determines to turn on or turn off the constant current source for providing or not providing a driving current to the one corresponding light source.