low frequency transformer product is suitablefor 50-60HZ、110V-240V AC voltage,the ambient tempreature to be applied may be -20degree to 40degree.the structure may be needlefrom and inserting from,etc.the product feature handsome and taste apperance,refinement volume,constant performance and reliable quality.it is made of silicon steel sheet with qualified quality and manufactured by superior technology.it has small loss in idle,high efficiency and low tempreture raise.our company can also design and produce ourselves in accordance with different needs of customers.