When we are travelling or camping in the outdoors， running out of battery is a very annoying thing. But if you have this Solar Panel， you completely don&#39;t have to worry about that. It serves us an limited supply of charging power for small current rechargeable ordinary phones， small speakers， MP3， etc.<br /><br />Features:<br />Made of polycrystalline silicon， very environmental friendly.<br />With an USB output interface， cable length is approx. 50cm.<br />Great for charging USB devices， such as ordinary phones， MP3， MP4， mini fans， etc.<br />With portable size， easy and more convenient to use.<br /><br />Specifications:<br />Max. Power: 3.5W / 4.2W (Optional)<br />Color: Black<br />Material: Polycrystalline Silicon<br />Working Voltage: 6V<br />Open-circuit Voltage: 7.2V<br />Working Current: 3.5W: 0-580mA; 4.2W: 0-700mA<br />Output Interface: USB 2.0<br />Cable Length: Approx. 50cm<br />Product Size: 3.5W: 165 * 135 * 3mm; 4.2W: 200 * 130 * 3mm<br />Product Weight: 3.5W: 98g/3.46oz; 4.2W: 115g/4.1oz<br />Package Size: 22 * 15 * 1cm<br />Package Weight: 114-130g / 4.04-4.6oz<br /><br />Note:<br />It can not provide charging for iPhone， Samsung phones or other advanced smart phones.<br /><br />Package List:<br />1 * Solar Panel<br><img src="http://img.tomtop.com/product/xy/2000/2000/p/gu1/H/1/H19118-1/H19118-1-1-a95c-OGrz.jpg" /><br>$$<img src="http://img.tomtop.com/product/xy/2000/2000/p/gu1/H/1/H19118-1/H19118-1-1-a95c-sxNl.jpg" /><br>$$<img src="http://img.tomtop.com/product/xy/2000/2000/p/gu1/H/1/H19118-1/H19118-1-1-a95c-HGTr.jpg" /><br>$$<img src="http://img.tomtop.com/product/xy/2000/2000/p/gu1/H/1/H19118-1/H19118-1-1-a95c-j9wE.jpg" /><br>$$<img src="http://img.tomtop.com/product/xy/2000/2000/p/gu1/H/1/H19118-1/H19118-1-1-a95c-vmJ4.jpg" /><br>$$<img src="http://img.tomtop.com/product/xy/2000/2000/p/gu1/H/1/H19118-1/H19118-1-1-a95c-Lp7Q.jpg" /><br>$$<img src="http://img.tomtop.com/product/xy/2000/2000/p/gu1/H/1/H19118-1/H19118-1-1-a95c-3u7P.jpg" /><br>$$<img src="http://img.tomtop.com/product/xy/2000/2000/p/gu1/H/1/H19118-1/H19118-1-1-a95c-Tx2g.jpg" /><br>$$<img src="http://img.tomtop.com/product/xy/2000/2000/p/gu1/H/1/H19118-1/H19118-1-1-a95c-NFyN.jpg" /><br>$$<img src="http://img.tomtop.com/product/xy/2000/2000/p/gu1/H/1/H19118-1/H19118-1-1-a95c-Vvq1.jpg" /><br>$$<img src="http://img.tomtop.com/product/xy/2000/2000/p/gu1/H/1/H19118-1/H19118-1-1-a95c-Ax17.jpg" /><br>$$<img src="http://img.tomtop.com/product/xy/2000/2000/p/gu1/H/1/H19118-1/H19118-1-1-a95c-nIAU.jpg" /><br>