Patent attributes
An LED tube lamp is provided herein, which implements the safety function for protecting the user from electric shock since it conducts only when both ends thereof have been correctly installed into a lamp socket. The LED tube lamp includes a lamp tube; two end caps, each having an external connection terminal, and each coupled to a respective end of the lamp tube, wherein the external connection terminals are configured to receive an external driving signal; an LED module, configured to emit light based on the external driving signal; and an installation detection module, coupled on a power loop of the LED tube lamp and configured to detect a sampling signal on the power loop and compare the sampling signal with a predefined signal, wherein when a signal level of the sampling signal is smaller than the predefined signal, the installation detection module limits a current on the power loop less than 5 MIU.
