[Energy-saving time delay function] This light-sensitive switch allows you to turn off outdoor lighting during the day and turn it on at night, generating significant energy savings. The preset time delay of 2 to 8 seconds prevents malfunctions caused by headlights, lightning, or other temporary nocturnal light sources. [Automatic detection] This fully automatic sensor switch controls the on and off of street lights according to changes in natural light, thanks to its high sensitivity. [Easy installation] This photoelectric switch has a rotating locking system for easy installation and removal; just insert it into its rotating locking base. Its standard pins ensure compatibility with all standard rotating electrical outlets. [IP65 protection class and surge protection] This product has an IP65 rating for water and dust resistance, as well as surge protection, which effectively protects the luminaire from lightning strikes. The housing's high-quality material protects it from internal corrosion, water, and other substances, ensuring long-lasting use.