Hand and portable work lamps spread light over a wide area for temporary tasks and general lighting. Also known as trouble lights, these portable work lights typically supply lighter and can be left on for longer periods of time than flashlights. They can be handheld to shine light exactly where it's needed and have either a hook, magnet, or flat base for hands-free use. These lamps are commonly used in emergency situations, repair shops, industrial settings, and utility and maintenance work. Handlamps plug into an electrical outlet. Portable lamps are cordless for use in areas where there's no access to an outlet.