Solar road stud

Solar cell: single-crystalline silicon (3v,75mA)
Storage battery: Ni-MH (700mAH) / Super Capacitor (22F)
Light source: super luminosity LED;
LED quantity: 2 pcs
Luminous mode: varying type /Constant Type
Work time: 108 hours above for Varying Type; and more than 24 hours for constant type(standard luminosity intensity)
Work temperature: -25 to +75 degree C.
Material of light: Polycarbonate
Resist compression: 20 tons Waterproof grade IP>67 Life: >5 years (Ni-MH) or >15 year ( Super Capacitor) View distance: over 800m