AC/AC adapters lower the voltage from the mains . They are used for low voltage devices with internal rectifier and / or voltage stabilizer (e.g. base stations for wireless phones) and AC powered devices (e.g. Halogen lamps). We also offer a series of power supplies with AC / AC 230/110, lowering the voltage of 230 V to 110 V. They are designed to work with devices coming from countries where the mains voltage is 110 V (eg. The US or Canada). In contrast to the thyristor solutions, they successfully supply faxes, printers, RTV sets and other electronic equipment without causing interference in their functioning. To ensure proper operation of the device, the AC power should be slightly higher (approx. 20%) of the power required. Some devices (eg. TV sets or CRT) need for greater starting power. All the AC/AC adapters 230/110 only convert the voltage. They does not change the current frequency of 50 to 60 Hz. Although this has no significant effect on the operation of contemporary devices; including chargers, computer hardware, printers or video equipment.