Solar Road Stud Double Amber 3, c/w 4 LED, Solar Road Stud Red White 3, c/w 4 LED; size :121x111x20mm.Weight App :430kgs. SOLAR ROAD STUD. Solar Cell :poly-crystalline silicon or single-crystalline silicon (3v,75mA) Stronge battery :Ni-MH (1000mAH) OR sUPER cAPACITOR (50F) Light source : super luminosity LED: LED quantity :4 pcs
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