Solarpanel :Mono-crystalline,9V/8W (double of others) Casingmaterials :PCwith mounting kit. Size:Exclusive transparent lens : Dia.300mm, Power :12Ah Voltage :6V Visibility :Over1500M Lighting way:8mm ultra-high shining LED 201pcs (changeable) Workingtemperature:-25°Cto+75°Cdegree Waterproofgrade :IP>65 Viewdistance :Over500m Workingtime: :72hours after a standard luminous intensity day, 240 hours ifbattery charged fully Certification:CE Appllication Road lighting , such as urban expressway/main road, secondary trunk road etc.