One of the main concerns when using your modified container as a living or working space is adequate lighting and plumbing systems. National Containers are fully equipped to set up your container for all the creature comforts. All container lighting and electrical systems are connected to a weatherproof 'Caravan' plug. Accessed from the outside of the container, you can easily plug in an extension for permanent or temporary use. A typical electrical installation in a 20ft container includes 2 fluorescent lights, a mini-circuit-board with safety switch, light switch and a double power point.