The Southwire Company 25 feet 12-2 UG W/G cable can be used as a feeder to outside post lamps and pumps from a distribution point inside an existing building. This cable can carry up to 600 volt. UL listed. UF-B Underground Building Wire25'UF-B: Underground Feeder Type B Wire600 VoltsFor Wet or Dry Locations90°C Heat Capacity19 mils insulation and jacket thickness95 lb. per 1000'20 allowable ampacity463 x 183 mil cable dimension