Easy to install with pre-drilled holes on the back of panel for fast mounting and securing. With the 20A charge controller with PWM function, it can prevent the battery from over charge, over voltage, discharge and short circuit, reversed polarity protection, battery is fully protected. You can expand your system up to a maximum of 260W 12V system or 520W 24V system.Dimensions: 116051035mm (45.6201.37 inch). Voltage at Pmax (Vmp):23V. Current at Pmax (Imp): 4.3A. Withstand high winds (2400Pa) and snow loads (5400Pa), strong tempered glass and aluminum frame for extended outdoor use, allowing the solar panel to last for decades. As our valued customer, we will do our best to make sure the product you receive arrives to you on time and as expected. This item is in the category "Home & Garden\Home Improvement\Electrical Supplies\Alternative Energy Supplies\Solar Power Supplies\Solar Panels & Kits". The seller is "*jacobkattash*" and is located in this country: US. This item can be shipped to United States.