Installing this retro doorbell push button is . Simply connect the doorbell button to your existing doorbell system, and use. The lighted feature ensures that visitors can easily use the button at night, enhancing both convenience and safety. Features -Rated voltage: 24V -Rated power: 220 -Rated frequency: DC 30V 0.5mA -Mounting hole diameter: 16mm -Color:Golden -Material:Alloy -Size:2.20X2.00X2.00cm/0.86X0.79X0.79in -Effortless setup: our doorbell button requires simple connections (wire not included), making the installation process quick -Timeless and aesthetic: the vintage round button adds a charm to home, making it a stylish addition to any entryway -Night visibility: the lighted doorbell button is easily located in the dark, providing added convenience -Multipurpose: ideal for use in homes, offices, and hotels, this doorbell button enhances the overall decor and functionality of any space -Robust build: constructed with alloy materials, this doorbell button is built to withstand regular use and maintain its appearance over time Package list: 2 x retro doorbell buttons