... ,Easy installation, no maintenance,environmentally friendly Detailed Product Description Solar light1.solar cell of single crystal silicon with utmost power 520mw . 2 ... work more than 120 hours after being fully charged.5.light colors:red ,yellow ,blue, green and white.6.diameter:5cm ... at:Tel:86-22-29335398 Fax:86-22-29341366Mobile:18920813070 Solar security lights