12 V Model X-223B X-223BT X-224B X-228B Photo View Input Voltage 100 100 100 100 No. of Lamps 1 1 1 1 Lamp Wattage 35W 35W 75W 75W Input Watts (AVG) 33W 19.5W 71.3W 66W Input Current(AVG) 0.33 0.197 0.72 0.67 Power Factor 99 99 99 99 Bench Heat Test at 23℃ Ambient Temp 45℃ Dimensions (L*W*H) 168*40*37 168*40*37 168*40*37 168*40*37 Case Type A Lamp Type Halogen Halogen Halogen Halogen Remark   Low   Low           Model B556S-B DUCT DUCT LOW DUCT SW Photo View Input Voltage 100 100 100 100 No. of Lamps 2 1 1 1 Lamp Wattage 75W 75W 75W 75W Input Watts (AVG) 143W 71.3W 66 71.3 66 Input Current(AVG) 1.45 0.71 0.67 0.73 0.71 Power Factor 99 99 99 99 93 Bench Heat Test at 23℃ Ambient Temp 45℃ Dimensions (L*W*H) 240*39*37 110.4*40*30.5 110.4*40*30.5 132*33*34 Case Type B C C D Lamp Type Halogen Halogen Halogen Halogen Remark                     Model DUCT220 DUCT220B DUCT220SW SS-220A Photo View Input Voltage 220 220 220 220 No. of Lamps 1 1 1 1 Lamp Wattage 75W 75W 75W 75W Input Watts (AVG) 71.3 71.3 74 68 71.3 Input Current(AVG) 0.32 0.32 0.33 0.32 0.32 Power Factor 99 99 99 93 99 Bench Heat Test at 23℃ Ambient Temp 45℃ Dimensions (L*W*H) 110.4*40*30.5 132*33*34 132*33*34 168*40*37 Case Type C D D A Lamp Type Halogen Halogen Halogen Halogen Remark         Low                 Model DUCT230 DUCT230SW     Photo View     Input Voltage 230 230     No. of Lamps 1 1     Lamp Wattage 75 75     Input Watts (AVG) 71.3 73 68         Input Current(AVG) 0.32 0.32 0.31         Power Factor 99 99 93         Bench Heat Test at 23℃ Ambient Temp 45℃ Dimensions (L*W*H) 110.4*40*30.5 132*33*34         Case Type C D         Lamp Type Halogen Halogen     Remark       Low                   CASE TYPE A CASE TYPE B CASE TYPE C CASE TYPE D