RAC Power Converters RECOM Power RAC Family Power Converters are a compact and highly efficient modular solution that offers a wide range of output power options from 1W to 20W. These RECOM Power AC/DC modules feature up to 86% efficiency, short circuit protection, and up to 3kVAC isolation voltage. Two different input voltage versions are available for most types: a standard 80VAC to 264VAC input or a wider input voltage range of 80VAC to 305VAC to power devices such as smart meters, cameras, high bay lights, etc. directly from the US 277VAC line.