Solar road stud Model no. Rs-702 Dimensions :132*122*20 (mm) Net weight 520(g) /500(g) Solar max. Output 0.35w Charge ability 118ma/hour Storage device type 1600mah ni-mh battery Type 8mm high intensity emitting diode Emission color yellow/white /red/blue/green Quantity 2pcs leds/1 side or 4pcs leds/2 sides Output-per led 11000mcd Leds Power current 14ma/hour Lighting way flash, steady, cascading effect Lighting time 50 hours after a standard luminous intensity day, 300 hours if battery charged fully Visibility (approx) 500m Operating temperature -25 to +75 degree c Main body upper part transparent polycarbonate Lower part die-cast aluminium alloy