No matter the primary use of your business premises, offices, retail shops, clinical environments, or restaurants. It is mandatory to have emergency lighting fitted to a minimum standard to comply with Health and Safety legislation installed for safety to provide a degree of illumination during a power outage. They are used to illuminate the fire exit door signs and priority escape routes to safely enable all occupants to evacuate a building in an emergency. ‘Maintained’ emergency lights work like all other fittings; should the power fail, it switches to back up battery power to provide a degree of light. ‘Non-maintained’ fittings use mains power to charge the internal battery and will only illuminate when power fails. Some fittings have a combination of both examples in one luminaire.