Achieving up to 97.4% power efficiency, the VPT Series toroidal power transformers are said to be smaller and lighter than traditional transformers. They are constructed with a Class B insulation system rated for +130°C that provides 4-kV primary to secondary isolation. Input voltage is 115/230 VAC, 50/60 Hz, and output voltages range from 6V through 230V. Voltage regulation is up to 2.5% from full load to no load. Pricing starts at $12 each/100. Triad Magnetics, Corona, CA. (951) 277-0757.