18/5 This wire is designed to be used as underground sprinkler system wire. Its made with hard insulation to withstand the toughness of nature. This cable consists of two bare copper insulated conductors with an overall jacket. 250", 18/5 Direct burial solid bc 30V PE jacket with ripcord Sunlight resistant Sequential footage marking The wires are 18 gauge Five conductors Conductors are solid Approved by the underground golf course sprinkler system cable laboratory Two bare copper insulated conductors with an overall jacket In dround Ul listed, spooled.