MK K4841WHI Switch Architrave 1GANG 2WAY 10AMP. The MK K4841WHI is a White 10A, Flush, 1 Gang or 2 Gang Architrave Switch. The switch can be wired to be either 1 way or 2 way. MPN : K4841WHI /. The MK K4842WHI is a White 10A, Flush, 2 Gang, Architrave Switch.