1.DC-DC Converter Transformer 2.SMD Type and Multiple Output 3.High quality wire(Japan made). Converter Transformer SpecificationsApplication Portable epuipment fluorescent display tube/DC-DC converterInductance Max1.5mHOperating FreqMax.500kHz,Max.Operating Power10W(100kHz), 18W(300kHz), 25W(500kHz)