Sunforce 59058 8-in-1 Solar Panel Hub Sunforce Products 8 In 1 Solar Panel Hub Used to combine the power output of multiple solar panels (8 panels max) Solar panels/solar kits are combined in parallel connection to maintain system voltage Works with both amorphous and crystalline solar panels Compatible with both 12 volt and 24 volt systems Handles up to 30 amps/450 watts of solar power (for 12 volt systems) 10.25 Inch Height x 1.88 Inch Width x 7 Inch Length Includes: 8 input ports, 4 trailer plug to stripped wires