The solar road studs can be embedded or installed on the surface. Key Features: Combine active radiation by solar energy with passive reflecting light by reflectors Super capacitor can be used for 100,000 times without environmental pollution High sealing performance guarantees elements inside to be separated well against water in super strong compressure-resistant aluminum shell Technical Specifications: Solar cell type: monocrystalline Material of reflector: acrylic Voltage: 3V Current