... ,the work times more than 100,000 hours,3.LED light source ,energy-saving and environmental-protection.5.The system is ... system of hotel ,meeting room,office,hospital,factory,shopping center,super market ,ect,.Trade Terms: 1.Payment: T/T , 30% deposits ... ,beam angle,voltage6.Price will be depended on the LED light soarce,light color,material,and etc.7.Packing:standed exported carton ...