1.Solar panel: 2W multi- crystalline solar panel 2.Light source: with 16/32PCS super bright LED. 3. Battery :4V 2AH Sealed lead-acid Battery 4. Charging time: 12-15 hours approx by charging adaptor 5. Duration time: 6 hours approx after fully charged. 6.Outer shell : plastic (ABS),With protected stainless stell 7.With compass on the top 8.Charging mode : 1)a. Car cigarette plug b、AC/DC recharging adapator 2) Solar panel