Each 14.4 watt thin film solar panel is manufactured under very strict quality control and is of industrial grade. Each module is constructed with heavy duty interconnection cables, aluminum mounting frames, blocking diodes, and tempered glass. Features * Rated System Voltage: 300v * Suitable for any 12v battery charging application * Durable Al frame for long life and easy mounting * Includes 10 year warranty * Operates in Overcast conditions Specifications Manufacturer: Silicon Solar Inc Warranty: 10 Years Operating Voltage (V) / Amperage (MA): 16.5/850 Rated Watts: 14.4 Size (LxWxH) (Inches): 13 x 37 x 0.50 Weight (Lbs): 8 We also have a variety of other thin film solar panels which range from 3.2 to 28 watts.