Defiant Wired Doorbell Tri-Volt Transformer, Compatible with all Video Doorbells

This Defiant Branded Tri-Volt Wired Doorbell Transformer is ideal for new construction or replacement. It features a Low-Voltage wired design with 3 options for electrical output: 8-Volt AC/10-Volt A, 16-Volt AC/10-Volt A or 24-Volt AC/20 VA. The transformer secures to knockout hole in junction box with included lock nut clamp.