(FM123) The 10-Watt solar panel collects energy from the sun, and provides a trickle charge of power to keep a 12 volt gate opener battery or batteries fully charged. 10-Watts of solar power is recommended for dual gates, heavier gates, or gates that will have numerous gate opening cycles per day. The solar panel should be installed facing South, and should have access to at least 6 hours of full sun per day. GTO recommends installing a second 12 volt gate opener battery with use of the 10-Watt solar panel. Comes with tubular steel support, mounting clips, wire connectors, and 8-Feet of low voltage wire. Additional low voltage wire is also available as an additional accessory in 100-Feet, 250-Feet, 500-Feet and 1000-Feet lengths, if the solar panel will need to be placed farther away from the gate to be in full sun. (FM121) The Solar Panel charging kit is a 5-Watt solar-powered battery charger for use with all GTO/Mighty Mule gate opener systems. Each Solar Panel comes with tubular steel support, mounting clips, wire connectors, and 8-Feet of low voltage wire. This durable solar panel is ideal for rural environments, and works best in direct sunlight. Purchase the Mighty Mule Accessories at www.hardwaresales.com