The Byron 7960 Series Wired Doorbell Additional Chime Bell Push has an optional lighting function Use in combination with your current or new wired door chime The bell push will illuminate if you install the optional light bulb and use a transformer chime Note that this will not be the case when using a battery chime Choice of Finish Brass Chrome and Brushed Nickel Comes with a 24-month warranty 1 x Byron 7960B Wired Doorbell Additional Chime Bell Push Brass 1 x Instruction Manual