Goal Zero Nomad 7 Solar Panel The Nomad 7 will directly charge most USB and 12V devices (not tablets). Most handheld USB devices, including: Cell phone, smart phone, GPS, MP3 player Collect 7 watts of solar power from the sun The Nomad 7 works best with the following Goal Zero products: Goal Zero Switch 8 &amp; 10 Recharger, Flip 10 &amp; 20 Recharger, Guide 10 Plus Recharger, Venture 30, Rock Out Portable Speakers, and Lighthouse Lanterns Foldable, rugged design, and weather resistant Use the USB and 12V ports at the same time. The Nomad 7 will split the incoming solar power between the two ports to charge devices simultaneously (Some devices may not be compatible)