We are offering solar chevron lights. application: for turning guidance solar panel: 3 watts monocrystalline panel battery: 6 volt / 4.5 ah- c 20 specifications: automatic flashing at night time each shining day of charging could last flashing for 180 hours no power cost. Power charge from the sun no wire and no power supply problem its convenient to install it anywhere. materials: the outer of iron covering through yellow baking powder coating processing, but the maim parts in the display are made of aluminium sheet 2 mm.