Double sided solar road stud

Material: PC plastic
Solar panel: multi crystalline silicon or monolycrystalline silicon
Illuminant: single side light(2LEDs )
Measurement and thickness: 107*107*22.5 mm   
Light color available: yellow, red, white
Battery :Ni-MH rechargeable battery
Working hours: 72hours after one day time charging
Flashing frequency: 60times per minute