PMA Medical Grade Adapters Phihong PMA 10W, 18W, and 36W medical grade adapters meet Department of Energy (DoE) Level VI standards and are ideal for Type BF medical applications. Phihong PMA adapters provide universal input and 2xMOPP (means of patient protection). The 10W and 36W versions offer interchangeable plugs and meet European Union Code of Conduct (CoC) V Tier 2 efficiency standards.