Original Mean Well Power Supply, NES-100-12,85~264V AC universal input, output:12V ... , 102W Original Mean Well Power Supply, NES-100-12,85~264V AC universal input, output:12V DC,0 ... 1) VOLTAGE RANGE:85 ~ 132VAC / 176 ~ 264VAC selected by switch 2) FREQUENCY RANGE:47 ~ 63Hz3) EFFICIENCY (Typ.):83%4) ... noise are measured at 20MHz of bandwidth by using a 12" twisted pair-wire terminated with a 0.1uf & 47uf ...