PowerFilm R15-1200 Rollable 20 watt 12 volt solar panel Because PowerFilm integrated solar panels (thin film on plastic) are developed and manufactured with a proprietary roll-to-roll process, by Iowa Thin Film Technologies, they are truly rollable unlike other thin film technologies that are only somewhat flexible. PowerFilm® solar panels are monolithically integrated which eliminates the need for damage-prone manual connections of individual solar cells. PowerFilm® is made of silicon, a natural resource in abundant supply. Also PowerFilm® performs well in diverse enviroments, including hot sun, and does not suffer from wasted over-voltage. Cadmium Free. Direct Power 12V systems can be directly powered with PowerFilm® Rollable Solar Panels. As with any solar technology, the solar panel power output must be greater than the power consumption of the 12V system. Technical Specifications Operating Voltage (V) Operating Current (Amps) Weight (lbs/kg) Rolled Dimensions (in/mm) Unrolled Dimensions (in/mm) PowerFilm R15- 1200 15.4 1.2 1.9 .88 12x4.25x4.5 305x108x114 12x73 305x1858