LED tube lamp having mode switching circuit

A light-emitting diode (LED) tube lamp, comprising:

• a lamp tube, configured to receive an external driving signal;
• a rectifying circuit, configured to rectify the external driving signal to produce a rectified signal;
• a filtering circuit, coupled to the rectifying circuit, and configured to filter the rectified signal to produce a filtered signal, wherein the filtering circuit has a first filtering output terminal and a second filtering output terminal;
• an LED lighting module, coupled to the filtering circuit, wherein the LED lighting module includes a driving circuit having a first driving output terminal and a second driving output terminal and configured to receive the filtered signal to produce a driving signal, and an LED module coupled between the first and the second driving output terminals and configured to receive the driving signal and emit light;
• and
• a mode switching circuit, coupled to at least one of the first filtering output terminal and the second filtering output terminal and at least one of the first driving output terminal and the second driving output terminal, and configured to select between performing one of a first driving mode and a second driving mode,
• wherein the LED tube lamp is configured such that the filtered signal is input to the driving circuit in the first driving mode, and the filtered signal is input to the LED module as the driving signal by bypassing the driving circuit in the second driving mode.