Automatic delay porch lamp

The utility model relates to an automatic delay porch lamp which belongs to the technical field of illumination appliances. The utility model is mainly composed of a door switch and a delay circuit, wherein the door switch is connected with the delay circuit and the delay circuit is connected with the porch lamp. The utility model has the circuit that the porch lamp is connected in series with a manual switch K2, and simultaneously, the porch lamp is also connected in series with the input end of a rectification bridge. Two output ends of the rectification bridge are connected with an amplifying circuit which is composed of transistors BG1, BG2, wherein a photoresistor R1 is connected between the base electrode of the transistor BG1 and a collector electrode and a capacitor is connected between the base electrode of the transistor BG2 and an emitter electrode. Then, the circuit is connected with the door switch 1. The utility model provides the signal of opening the door through the door switch arranged on a door frame, and the delay circuit is used for providing a period of time of the illumination of the porch lamp. The utility model has the advantages of reasonable design, convenient use, automatic delaying illumination control, etc.