Lamp with temperature turn-off circuit

The utility model discloses a lamp with a temperature turn-off circuit. The lamp comprises a power supply and a light-emitting module. The power supply comprises a power supply input end, a rectification filter circuit, a power control circuit, a power supply output circuit and a power supply output end which are electrically connected in sequence, the power supply further comprises a temperature turn-off circuit, the temperature turn-off circuit comprises a temperature protective tube F2 and a piezoresistor ZV1, the temperature protective tube F2 is connected to a live wire or a zero wire of the power supply input end in series, and the piezoresistor ZV1 is connected to the power supply output end. The piezoresistor ZV1 is connected between a live wire and a zero wire, and a temperature sensing head of the temperature protective tube F2 is mounted at a position close to or attached to a packaging main body of the piezoresistor ZV1; when the voltage dependent resistor ZV1 encounters abnormal voltage, the pack