Lighthouse Electronics specializes in Domestic electric fences, Corporate Parks, Complexes, Industrial Businesses. Electric fences are used as the first barrier of security in South Africa. If the electric fence is installed correctly, it will protect you in most instances from intruders. Other security devices can be added as an extra. We can now enjoy the wonderful climate outside our homes without feeling unsafe. Keep in mind that an alarm system does not protect you when the doors are open and you are sitting outside.