Solar road stud

Solar Road Stud 1)Solar cell: poly-crystalline silicon or single-crystalline silicon (3v,75mA) 2)Storage battery: Ni-MH (1000mAH) or Super Capacitor (50F) 3)Light source: super luminosity LED; 4)LED quantity: 4 pcs 5)Luminosity colors: red, green, blue, white, yellow (for any choice) 6)Luminous mode: varying type or Constant Type 7)Work time: 108 hours above for Varying Type(150times/minute); and more than 24 hours for constant type(standard luminosity intensity) 8)Work temperature: -25 to +75 degree C. 9)Material of light: Aluminum alloy and Polycarbonate 10)Resist compression: 30 tons 11)Waterproof grade IP>67 12)Life: >5 years (Ni-MH) or >15 year ( Super Capacitor) 13)View distance: over 800m 14)Guarantee period:14 months