97*97*55mm 0.25KGS Solar cell: poly-crystalline silicon / single-crystalline silicon (3v,100mA) Storage battery: Ni-MH (1500mAH) / Super Capacitor (2*120F) Light source: super luminosity LED; LED quantity: 4 pcs Luminosity colors: red, green, blue, white, yellow (for any choice) Luminous mode: Constant Type (standard luminosity intensity) Work time: more than 15 hours Work temperature: -25 to +75 degree C. Material of light: Polycarbonate Resist compression: 10tons Waterproof grade IP>67 Life: >5 years (Ni-MH) or >15 year ( Super Capacitor) View distance: over 800m Guarantee period:14 months