... silicon,25-year lifetime,140W*1pc; *light source:LED lamp with high-lumination and more than 10,000-hour lifetime, 60W ... control by microcomputer, time control and light control,10A12V *1 pc; *light post:5 meters,common steel galvanized and plastics coated; *other parts: ... to 7 working hours per day and 3 constant overcast and raining daysModel NoJYSL-1001LED light LED power60W Working voltage12V/24V DC ...