ZAMP SOLAR 90 WATT EXPANSION SOLAR KIT - 62-2640Zamp Solar began in 2010 in a small garage, selling off grid solar kits. In just one year, we grew to a 2,500 sq ft facility. Now, we are the top off grid solar solutions provider in the US. Type: Expansion Solar Kit Power Rating: 90 Watt Panel Type: Monocrystalline Length (IN): 58. 3 Inch Width (IN): 13. 6 Inch Controller Type: Without Controller Inverter Type: No Inverter With Mounting Hardware: Yes