dimensions 1.25 in.Wide x1.25 in.High; negative black wire leadpositive red wire lead; both leads will be 6 inch length with polytetrafluoroethyleneinsulation; electrical requirements input current 9.0 amps dc ; input voltage 90 v dc , 20 units seriesconnected; loaded heat pump capacity shall be 19.5 watts plus or minus 1 or 66.5 plus or minus 3 btu/hr
