UNI-PAC 30 34 Watt Unique and Durable The unique design of the UNI-PAC™ features a lightweight construction without glass or fragile crystalline to break, crack, or add on extra weight. The tough nylon fabric covering allows the unit to be folded to a convenient book size, for easy storage and transport. The UNI-PAC™ 10 offers dual voltage charging for 12V and 24V, the UNI-PAC™ 15 and the UNI-PAC™ 30 are for 12V charging. The UNI-PAC™ was designed to meet military requirements for durability, performance and reliability. Tefzel (by DuPont) serves as a strong, long-lasting front cover. Individual solar laminates contain by-pass diodes, making the UNI-PAC™ solar chargers tolerant of severe shadow or partial covering. Charging rate and voltage can even be adjusted to meet specific needs. Dimensions & Specifications Rated Power: 34.0 Watts Operating Voltage: 17.6 Volts Operating Current: 1.9 Amps Open Circuit Voltage: 26.0 Volts Short Circuit Current: 2.4 Amps Size, Folded (LxWxH): 17" x 7" x 2" Size, Deployed: 55.9" x 33.9" Weight: 4.7 lbs