... work life ,the work times more than 100,000 hours,3.LED light source ,energy-saving and environmental-protection.5.The system ... .2.According to your requirement design the sample for you.3.Send you our brochure if you need.4.Any specification ... angle,voltage6.Price will be depended on the LED light soarce,light color,material,and etc.7.Packing:standed exported carton. Fire Emergency light