Be made of epoxy,invironmental materials,more beautiful sharp,longer service life,low price,canbe used on lighting 1.The main ingredients are core ,copper ,electron,and wartering epoxy in it.2.The power canbe 50W,also we can make the higer transfomer like this ,but larger size.3.FOB Ningbo ,the price is RMB45,also can change into other currencies according the rate.4.the lead time is 20-25 days ...