BAZHOU Photocell Sensor Auto On Off Photoelectric Sensor Switch Twist Lock for LED Street Barn Parking Lot Area Light Blue Sensory Switch IP65 Protection:Surge protection and high quality material shell avoids the twist lock photocell sensor corroded or damaged by water or other things, assures long-term using Time Delay Function:Accurately judges natural light,auto on off photocell sensor switch wont be triggered due to occasional light such as car headlights, lightning or other temporary light Note:This photoelectric switch should be installed overhead the lamp ensuring it can only detects the sunlight,and it should stay away from other lighting Easy to instal:Twist lock design makes photocell for outdoor light easy to replace and install, just need to plug in a base Material:This photocell sensor is made of ABS,which is durable color: blue Size: 84x66mm Quantity: 1pc 1.As different measuring methods,it will occur 1-3 cm deviation about the items,please ensure that it is okay for you before ordering. 2. Because of different monitors and lamplight, the picture may not reflect the actual color of the item, really thank you for your kind understanding. 3. Only the above package contents, excluding other products.