LED energy saving lamp

The invention relates to an LED energy saving lamp, comprising an LED lamp set and a circuit device thereof. The circuit device comprises a rectification circuit and a filter circuit, wherein the rectification circuit consists of rectistacks VD1-VD4, and the direct current output ends of the rectistacks VD1-VD4 are connected with the LED lamp set; the two ends of an LED lamp set are connected with a filter capacitor C3 in parallel; one alternating input end of the rectistacks VD1-VD4 is connected with a bidirectional thyristor T1 in series, and the two ends of the bidirectional thyristor T1 are connected with a resistance and capacitance phase shifting circuit in parallel; and a bidirectional diode VD is connected between a serial-connection point of a resistor and a capacitor and a trigger electrode of the thyristor T1. In the circuit, since the phase shifting voltage of a phase shifting circuit is used for controlling the breakover of the thyristor, the alternating current input voltage of the rectistacks can be regulated. The alternating current voltage is directly connected to the LED lamp set through rectification and filtering, and the circuit does not contain divider resistors or transformers. The invention has the advantages of energy saving, consumption reduction, simple circuit, low cost and the like.