Solar road stud lights Body material: GB Cast Aluminium alloy Power supply: USA Brand Flexible High Efficient Solar Panel (2.5V/0.38W) Battery: NI-MH 1.2V/600mah(high temperature resistance, made in China); Lithum battery 3.2V/500MA(made in Japan); Super capacitor 2.3V/120F(made in Korea) LED: Ultra bright diameter 5mm(4pcs or 6pcs)