The electric light did not come from continuous improvement of candles.
Oren Harrari
Transformer
The technology behind electric transformers has not changed in 140 years; ever since 1885.
The main issue, they don't change the frequency, only the voltage.
iTransformer
PowerXchanger introduces the world's first intelligent Transformer that changes both Voltage as well as Frequency. You can have 120 Volts and 60 Hz (Step down model) or 200 Volts and 50 Hz (Step up model) anywhere on the planet.
