The system is mainly composed of solar panel, light source and battery.<br> In daytime, when there is sunshine, the solar panel can convert the solar energy to electric energy and store it in the battery. <br> The photovoltaic panel is fixed in the roof or a place with sufficient sunlight, the wire is introduced into a room, and the plug is plugged in the port for charging (5 - 8V charger can be used for charging as well)<br> The charged bulb can be used as a mobile lighting lamp. <br> Base Type: Other<br> Holder: Other<br> Type: Ball Bulbs<br> Total Emitters: 12<br> Luminous Flux: 130LM<br> CCT/Wavelength: 5500-6500K<br> Voltage (V): DC 5V<br> Lifespan: More than 5000hrs<br> Capacity of lithium battery: 850ma/3.7V; continuously effective lighting of fully charged bulb: 5h<br> Battery can be fully charged by the photovoltaic panel under a sufficiently sunlight condition.<br> Available Light Color: Natural White<br> Sheathing Material: Plastic<br> Certifications: FCC<br> Package weight: 0.179 kg<br> Product size (L x W x H): 12.00 x 6.80 x 6.80 cm / 4.72 x 2.68 x 2.68 inches<br> <b>Note:</b><br> The solar panel Should be placed in sunny places, facing the direction of sunlight directly to receive more solar energy.<br> Package Contents:<br> 2 x Chargeable Bulb<br> 2 x 0.8w/5v Solar Panel with Connecting Line about 3.5m/11.5ft