Compatible LED (Light Emitting Diode) lamp tube having linkage self-recovery turn-off function

A compatible LED (Light Emitting Diode) lamp tube having a linkage self-recovery turn-off function comprises an LED lamp tube body, a driving circuit which is installed inside the LED lamp tube, an LED circuit board, a heat dissipating device and a linkage self-recovery turn-off lamp holder which is installed at at least one end of the LED lamp tube body. According to an application method, when the LED lamp body is not arranged inside a lamp tube support, an internal shifting piece of a second linkage assembly cannot shift due to interference of a locking piece of the first linkage assembly; when the LED lamp tube body is arranged inside the lamp tube support and applies external force to shift an external shifting ring of the second linkage assembly, a conducting column is in contact with conducting pieces which are arranged on the internal side of an outer casing and the internal side of a rear cover; when a single end or the whole of the LED lamp tube body is separated from the lamp tube support, the conducting column is separated from the conducting pieces on the internal sides of the outer casing and the rear cover. The compatible LED lamp tube having the linkage self-recovery turn-off function solves the safety problem when the novel LED lamp tube replaces a traditional fluorescent lamp.