... SourcesiPhone4 / iPhone 4SPower Supply : Li-Polymer BatteryPower Input (USB) 5V, 500mAPower Output 5v,1APower ConsumptionProjection mode: 4.5WPower ... 67*20 mmProduct Weight:105g Package Content Projector , Pouch, USB cable, Quick Start GuideOptional Accessories: Power Adapter (5V,2A ... 't use long time?A:Please test the connecting line is correct insertion related interface inside, whether enough power ...