1 Year Full Quality Warranty! 5 years limited power warranty: designed to produce over 90% of rated power. HQRP 8 Watt (8W) Solar Electric Power Panel. The solar cells are encapsulated beneath high transmission tempered glass. The rear surface of the module is completely sealed from moisture and mechanical damage. Construction of the module minimizes weight while providing a durable, protective environment for the solar cells. Sturdy aluminum frame protects the solar panel from deformation during transportation, high winds, bad weather. The firm frame allows to fix the panel in the places which are difficult to readch: on the roof, on lampposts, in forest lodges. It allows to fix the solar panel firmly on the sides of cars or boats, its sturdy design won't let the panel deformate and fail on the move. Durable and sturdy aluminum construction will help extend the use of solar panels in the long term. Panel is designed to produce over 80% of the nominal power within 25 years (this efficiency is not covered by the limited power warranty).