5 Volt 2 Amp Flex Regulator: Easily expand the potential of XGrid products with accessories. Switch between 6V, 12V and USB applications simply by changing out FLEX Regulator. Daisy chain multiple Solar Panels together or extend the reach with XGC extension cables. Use the USB AC Speed Charger to rapidly charge the XGB battery packs, or any USB device, when AC power is available. Keep solar panels and cables securely attached to glass and smooth surfaces with Suction Clips.