Part number:346 Item Weight:400 g Package Dimensions:10.9 x 9.6 x 6 cm; 400 Grams Size:1 Count (Pack of 1) Colour:White Power source type:Corded Electric Included components:Power Cable You can never worry about charging batteries after using the power adapter. Easy set-up for hassle-free connection. Easy to use, just connect your doorbell to a power outlet. Install easily. Connecting the power supply adapter to Video Doorbell takes just several minutes, dont need an electrician. CE certified safe, All doorbell transformer power adapter have been thoroughly tested for safety. About this item 18V Doorbell Transformer --- Powers your popular smart thermostats and doorbells ( Video Doorbell, Video Doorbell 2nd generation & Doorbell Pro, etc.) Safe Enough to Operate --- A quick fix to the problem of "Low battery", you can charge it directly(plug adapter into outlet and power-up), safe and convenient. 5M/16ft Long Cable --- This doorbell plug in adapter is equipped with 5m/16ft cable, No worry about the distance between the socket and the adapter. Premium Material --- This transformer for doorbell is made of environmentally friendly materials, with good electrical conductivity, transmission stability and durability. It can keep your doorbell running normally, saving time and effort Wide Application --- 18v plug in adapter is compatible with wired doorbell and smart thermostat, it is a good helper for your home intelligence 18V Doorbell Transformer --- Powers your popular smart thermostats and doorbells ( Video Doorbell, Video Doorbell 2nd generation & Doorbell Pro, etc.) Safe Enough to Operate --- A quick fix to the problem of "Low battery", you can charge it directly(plug adapter into outlet and power-up), safe and convenient. 5M/16ft Long Cable --- This doorbell plug in adapter is equipped with 5m/16ft cable, No worry about the distance between the socket and the adapter. Premium Material --- This transformer for doorbell is made of environmentally friendly materials, with good electrical conductivity, transmission stability and durability. It can keep your doorbell running normally, saving time and effort Wide Application --- 18v plug in adapter is compatible with wired doorbell and smart thermostat, it is a good helper for your home intelligence