Stable & Build: Dusk to dawn photocell sensor uses copper conductive parts for consistent electrical performance and long service life, with IP54 weather- protection to guard internal components from rain, dust, and debris in yards, gardens, driveways, and walkways. 5-10s Anti-Interference Delay: Built-in delay feature filters out brief or accidental light changes from car headlights, , or other flashes to avoid unwanted flickering, minimizing frequent on/off cycles that can shorten lifespan of LED fixtures, flood lights, and other lamps. Auto On/Off Photocell Switches: Set of 2 hard-wired light control sensors that automatically turn outdoor fixtures on at dusk and off at dawn using ambient light detection, reducing waste and manual switching. Easy Lead Wiring Installation: Designed for most hardwired outdoor fixtures and lamps; simply disconnect power, remove the junction box cover, insert the optical phototube switch into a mounting hole under 0.6" diameter, and secure with the included lock nut for a firm, stable fit. Wide Compatibility: Photoelectric switch replacement supports 100-277V, 50/60Hz input for residential or commercial applications, working with incandescent, LED, fluorescent, , CFL, and more, ideal for post lamps, wall packs, yard lights, and landscape lighting systems., Weight: 0.20282528104 pounds, Manufacturer: Aboiled