【Specification】Input: 120 V/AC, 60 HZ; Output: 24 V AC at 40 VA, UL-certified, reliable performance and safe to use
【UL Certification】This doorbell transformer has UL Certification, which greatly improves safety and longevity, as transformer without this certification have a higher risk of circuit induced fire house problems during operation
【Power Multiple Thermostats/Doorbells】Replace and upgrade underpowered transformers with this 24V AC Transformer, while providing ample power to single or multiple thermostats and doorbells(Perfect replacement for an old transformer and will work with any wired door chime)
【Simple Installation】Replacing and installing the doorbell transformer involves using screws, unscrews, or threaded clips to secure it to the electrical box, ensuring it is in a safe location.
【Compatibility】The transformer doorbell power supply compatible with Ring doorbell transformer, Nest, Ecobee, Sensi and Honeywell thermostat and doorbells