Solar dc led lamp(solar panel+solar controller+battery+cable) Solar panel: 18v10w(efficiency at around 18% and waterproof) with 6m cable Battery: 12v7ah(maintenance free lead acid battery) Lamp: 3pcs dc 12v3w (super bright led bulb) Usb port: 2pcs to charge mobile phones, to apply dc fan, mp3, mp4 etc. Light swich and cable:3pcs 5m light cable with lamp holder and switch. Application: This product is a multi-function mini solar home lighting system. It is suitable for house lighting in the place with plenty of sunshine while lack of electricity. It also can be used as lighting for traveling, camping, outdoor work and other emergency lighting. What¡¯s more, it can use as a potable backup power/charger too, can charge for mobile, camera, dv, mp3, mp4, psp, ipod... Standard carton packing(with epe).