1 Material of light:Polycarbonate 2 LED quantity: 2 or 4 pcs 3 View distance: over 800m 4 Vehicle guide

Solar cell:single-crystalline silicon (3v,75mA)Storage battery: Ni-MH (900mAH) / Super Capacitor (120F)Light source: super luminosity LED;   LED quantity: 2 or 4 pcs  

Size: 111*87*24mm                                                   Luminous mode: varying type /Constant TypeWork 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: PolycarbonateResist compression: 20 tons                Waterproof grade IP>67         Life: >5 years (Ni-MH)  or >15 year ( Super Capacitor)               View distance: over 800m