Patent ID: 8299711

Claim:
A protection circuit of T8 LED (Light-Emitting Diode) lighting tube, comprising: at least two power transmission connectors, which are respectively mounted to two ends of a T8 LED tube, each of the power transmission connectors comprising at least two contacts, which are respectively engageable with tube retention connectors formed on opposite ends of a T8 fluorescent light fixture to establish electrical connection with an external alternating current power source; and at least two rectification circuits, each of which comprises at least one rectifier semiconductor, the rectification circuits being respectively connected to the contacts of the power transmission connectors and also respectively connected to a positive power terminal and a negative power terminal of a light source load of the T8 LED tube that is connected to the power transmission connectors, the rectifier semiconductors of the rectification circuits being connected to each other to form a reverse flow prevention structure, whereby the rectification circuits selectively converts an alternating current power supplied from the external alternating current power source through the power transmission connectors into a direct current power supplied to the light source load, and isolates and disables a starter of the T8 fluorescent light fixture connected to the power transmission connectors.