Solar Road Stud Key Feature: Embedded design Snow plough-able, only 5mm over the road surface Perfect water proof: IP68 Specifications: Body material: Aluminium alloy+PC cover Power: Solar panel(monocrystalline 2.5V/180MA) Battery:Lithum battery 1000MAH LED: Ultra bright diameter 5mm LED color: Red,Yellow,Green,Blue,White Working mode: Blinking or constant Fully charge at 8hours and can working 130hours continuously Water proof: IP68 Working temperature:-20-70degree Life span: >5years Load capacity: >30T Detailed Photos