Egypt makes use of 220V electricity. In that case it is advisable to have an electrical converter or transmitting device in order for travelers to make use of their carry-come devices.
Should a visitor forget his/hers, it is best to enquire about electricity and converters from the tour guides or hotel receptionist.
Egypt has experienced a more than often shortage of electricity for various reasons in the past two years. It is therefore also advisable for visitors to have a torch.