Replacing a regular doorbell with a hard-wired door chime? This transformer will help you get the job done.
Use this transformer when you're replacing a doorbell with a wired door chime
Low-voltage, wired design; features a 120 VAC electrical input
3 options for electrical output: 8 VAC/10 VA, 16 VAC/10 VA or 24 VAC/20 VA
Dimensions: 2.5 inches wide, 2.25 inches deep, 2.125 inches high