NOKIN solar road stud, NOKIN solar road stud Suppliers and . Sponsored Listing solar road safety studs: Specification: 108 * 87 * 24mm Material: cast aluminum + PC Solar panel parameter: 2V / 120MA Battery specifications: 1 1.2V / 600Mah MH high-temperature battery Source: 3 * 2pcs super bright LED light-emitting tube LED color: yellow light, red, blue, white, etc. Display mode: flashing or