Uni-Solar 64 Watt Solar Panel The Uni-Solar 64 watt amorphous film solar panel is the latest breakthrough in lower cost technology. This high efficiency panel consist of tiny cell composed of three spectrum-senstive semiconductor junctions stacked on top of each other. This gives 30% more output per square foot than perivous Uni-Solar products. This panel is mounted on a stainless steel backing with DuPont’s Tefxel glazing and due to unique construction, the panels have the ability to continue useful output during partial shading. Frames are anodized aluminum. Large weatherproof junction boxes are supplied. These highly durable nearly unbreakable panels are an excellent choice for RVs or any location where vandalism is a possibility. Like all amorphous modules, power output will fade approximately 15% over the first month or two. Rated power is post fade, and is warranted for 20 years. If you can afford the larger surface area, the Uni-Solar triple-junction modules are one of the best PV bargains available. UL and CUL listed. USA. Rated Watts: 64.0 watts @ 25:C Rated Power: 16.5 volts @ 3.88 amps Open Circuit Volts: 23.8 volts @ 25:C Construction: triple junction, Tefzel glazing Warranty: 20 yrs. Weight: 20.2 lb/9.2 kg L x W x D: 53.8" x 29.1" x 1.25"