As for refrigerators and washing machines, major manufacturers consider these not to have high power consumption (0.3-0.5 kWh per hour), and so do not offer variable frequency drive. But TECO, expecting energy-saving standards to become increasingly stringent, has put a great deal of effort into developing inverters for these two types of appliance.
至於冰箱、洗衣機，各大廠認為耗電量不高（每小時耗 0.3 ~ 0.5 度電），通常都不提供變頻功能，但東元看準節能標準勢必越來越嚴苛的大潮流，將大力投入這兩類家電的變頻器開發。