SWI6 6W Wall Plug Adapters CUI Inc SWI6 6W Wall Plug Adapters provide up to 6W continuous power and Level VI efficiency in a compact size. The SW16 series offers <,0.1W no-load power consumption and comes with overvoltage, overcurrent, and short-circuit protections. These CUI Inc adapters come in two variants: SWI6-E and SWI6-N. The SWI6-E adapters are designed per European standards and have UL, cUL, and PSE safety approvals. The SWI6-N adapters are designed per North American standards and incorporate CE safety approval.