Integrates seamlessly with mechanical chime and digital doorbell systems (diode required for digital), combining the sophistication of antique bronze with practical features such as case for upgrades and universal wiring compatibility Steady on LED provides gentle nighttime visibility without overheating. 5" (13.2 3.3 2.5CM) pre-drilled holes for easy installation and compatible with 8 24V systems Premium brass construction with antique bronze finish ensures durability and weather resistance and works perfectly in extreme temperatures from 4°F to 240°F for year-round outdoor reliability Ideal for senior visitors and homes with children, the oversized buttons are easy to operate even with gloves and maintain the elegant curb appeal of vintage hardware beauty This weather-resistant doorbell switch is perfect for enhancing the front door functionality of traditional farmhouse and modern residential houses, and withstands rain and temperature changes in the main or porch entrance, Manufacturer: Rxgiasup