The Intelligent Dual UVC/White Tube Light comes in 3 sizes – 600mm, 1200mm and 1500mm. They are compatible with all standard light fittings to make installation simple. They can be used inside fridges, shop isles and any other unoccupied space. A preset schedule is set up on the lights to ensure that the UVC lights switch on once a day, during a time that the space is unoccupied, while an additional sensor is also connected for further safety to detect movement and shut off the UVC lights if someone enters that space during that time, to ensure nobody gets harmed. Zones can be created, meaning that only areas in use will be shut off leaving unoccupied areas to continue with their sanitisation.