There are equipped with 2 screws in the package that is convenient for you to time for dust and dawn, making your life more convenient and easier The shell of the light switch is UV-resistant and water-resistant, you can use it for a long time without worries This kind of light switch could protect the light by avoiding change the circuit, prolonging the service time of the light The photocell light switch is made of plastic material, which is durable and not easy to be broken, you can use it for a long time Designed with small size, this kind of light switch is easy to install and use, saving time and strength for you Description: This kind of light switch could make sure the light for road, and you can control the switch easily, prolonging the service time of the light. This light switch could protect your light from repeating on or off, making your life more convenient and easier. The shell of the switch could resist UV and water,you can use it in any weather, suit for road light, light and other outdoor place. You can adjust the off and off time by adjusting the screws, saving time and strength for you, you can order according to your need This kind of lightswitch is made of plastic material, could be used for a long time because it is durable and sturdy, you can use it without troubles. Specification: Material: plastic. Color: show as pictures. Size: 13.3*8.1*8.8cm. Note: There might be a bit color distortions due to different computer resolutions. There might be a slight errors due to different hand measurement. Package included: 1x sensor switch. 1x English introduction. 2x screws.