Ⅰ. Automatic switch on and off: The photoelectric light sensor is equipped with an automatic illumination detection circuit inside, which can automatically turn off during the day and turn on at night, saving time and effort; the shell prevents internal corrosion or damage by water or other objects. Ⅱ. Good stability: The basic voltage of outdoor photoelectric switches is 120V~277V. The wide voltage products have good stability, can resist interference and delay, and are -Pattern protection circuits. They are suitable for outdoor use, parks, streets, parking lots, sidewalks, etc. Ⅲ. Easy to install: The photoelectric outdoor lighting features a twist-lock design for easy removal and installation; the standard plug ensures the sensor will fit into most standard twist-lock sockets; you will get 3pcs, enough to meet your needs. Ⅳ. Delay function: Dusk to dawn sensor is suitable for standard steering lock sockets, dawn-style barn or pole lights; built-in 5-second delay function to avoid false triggering, such as car headlights, thunder or other temporary light sources. Ⅴ. Heat resistance: Compared with traditional thermal photoelectric tubes, this twisting photoelectric tube has a repeatable set point, does not generate heat, maintains normal temperature, and will not change color during the product's service life; in addition, it has a faster response time, can withstand currents and can work well with LED lights. Ⅵ. Material: ABS Ⅶ. colour: Black+blue Ⅷ. Package Contents: 3 x Sensor. Only the above package content, other products are not included. Ⅸ. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.