... ,To All SmartPhone & Ipad portable monocrystalline silicon solar battery charger 5v rohs monocrystaline silicon solar power battery Size and weight140*88*23 mm,NG:281G ... :5.5 V,3W 2.Solar conversion efficiency above 17%3.Built-in battery(Li-Polymer battery):5000 mAh4.Output voltage:5 V5 ... black, red, yellow,blue,green LEMI P40 portable monocrystalline silicon solar battery charger