Jordan uses 220 volt, 50 hertz alternating current, assuming a power cut is not occurring. For this reason, many Jordanians have backup generators at home. At the souq, you will neither hear nor see the transfer to the backup generators. The current can fluctuate in certain areas, which can be damaging to electrical equipment. Plug sockets are not uniform, although adapters can be bought in electrical stores or borrowed in some hotels. A good torch can certainly come in handy, especially for when you are out walking at night, as street lighting can fail and leave you literally in the dark. Water supplies can also be subject to breakdown, and many buildings have a water reservoir on the roof to counteract this.