Calix 115/230v to 12v Transformer Unit TR122 - 24045002404500 12v Transformer Unit TR122 Calix Voltage Transformer Unit, compatible with 100 240v AC systems and outputs 1a at 12v DC. Sold as a replacement part and supplied as part of the kit with the Calix Pump kit. Please note that the TR121 model (1556523) has been superseded by the TR122 (2404500) transformer unit. Specification Input Voltage 100 240v AC 50 60Hz Output Voltage 12v DC 1a Ingress Protection IP46 Warranty 3 Years from Date of Purchase