[Power saving]: The upgraded LED light doorbell button is more beautiful and gear saving than other doorbell switches; It's clear in finding green soft in the dark [Widely used]: This style of luminous doorbell button swap is style of universal, suitable for low-voltage buzzer system, and is a good replacement for the former garage door opener or doorbell switch [Durable material]: It is manufactured from stable door bell cover, which isn't clean to interrupt and deform. The interior is made from great copper plate. This door opener ought to be to be used for decades whereas no longer having to be replaced back [Easy to install]: This doorbell button is in a position 2 x 0 x 0 inches (L x W x H), geared up with 2 screws, and the screw gap spacing is two inches (note: wires are usually not included). If it is used as a substitute, it might now not need to drill holes [Widely used]: This sort of luminous doorbell button change is almost universal, well matched for low-voltage buzzer system, and is a good replacement for the previous storage door opener or doorbell switch Colour:black Material:plastic Package Contents: 1 x doorbell Only the above package content, various products will not be included. Note: Light reflection and various reveals may cause the color of the item within the photo a little various from the real thing. The measurement allowed error is +/- 1-3cm.