Yinsheng ( Warmtone) Electricity & Hardware Factory is among the earliest producers in aquarium line in China. specializied in manufacturing more than 30 series of aquarium heaters, electrical thermostats , UV lamp, electronic, cooler. Auto fish feeder, ornamnets and equipment for aquarium plants, Parts of the products have got national patents and successtully entered Europe, U.S.A West Asia and Hongkong. Besides, the Submersible series heaters have passed the CE test. In recent years, experienced engineers are employed to set a development to make products even better.