Well well well the shopkeeper has succeed in fooling me by selling such a bad product to me, it is the worst product I have seen and used in my life, as I am working as a electrical enginner I now found that it is not a good product as because the enginners or the makers have not built it in propoer way as because it converter is so poor that it cant even transform energy to better workable energy and it voltage receptor is at lowest condition, customer satisfaction is almost zero in my working cirty and none demands for this product even being the cheaper one.