Heavy Duty Solar Stud Lights For Highways C2 . Load Bearing: More Than 40 Tons (can be installed in the middle of the road) Warranty: 18 Months Body material: Aluminium(GB-ADC-12)+PC(Japan Brand) Power supply: USA Brand Flexible High Efficient Solar Panel Visual distance: > 800m Working Mode: Flashing or Constant Waterproof: IP68