Use your power bank by plugging it directly into the wall or let the sun do the work while being eco-friendly! UL certified Lithium-Polymer battery. Charge 20-30% of your phone from a 7-8hr solar charge for emergency purposes or use the 4000mAh battery to charge your devices even quicker. EQP not available on this product. This item ships from Texas. Includes free setup and free ground shipping.