Wiring:The iWave-R contains a patented universal voltage 24VAC to 240VAC input capability. The black wire (marked ‘AC’ on label) is for 24VAC to 240VAC voltage input. The white wire (marked ‘N’ within the label) would be the neutral leg for 24VAC or 120VAC; or the opposite scorching leg for 208/240VAC.We reserve the right to reveal any info