Temperate Coefficient of Power Voc. 1pc 25W poly solar panel. The item "DC 12V Hot Water Circulation Pump & 25W Solar Panel Home Hot Water System" is in sale since Wednesday, January 10, 2018. This item is in the category "Home & Garden\Home Improvement\Electrical Supplies\Alternative Energy Supplies\Solar Power Supplies\Solar Water Pumps & Kits". The seller is "quasolar" and is located in Walton, Kentucky.This item can be shipped worldwide.