4W DC Solar Lighting Kit Features: 1. All in 1 solar DIY DC lighting kit, Ideal for providing power for home using, like reading, cooking, and some more daily working, Also good for some outdoor entertainments, like camping & fishing 2. With 3 set LED light(with on/off switch and LED holder),can light up 3 rooms at the same time 3. LED lighting and mobile phone charging in one device 4. The charge controller-over-charging, over-discharging protection Working time on full battery: 3 LED 8HRS 2 LED 12HRS 1 LED 24HRSUKC