Commonly used on small to large scale computer servers, the UPS (Uninterrupted Power Supply) system is a battery back up unit used in case of an electrical power outage. Used in conjunction with the powerful 230V inteli-touch motor it is a perfect solution to ensure that entry and exit points of a household or commercial premises that are secured with roller shutters are always openable in case of fire or a mains power shortage. It continues to charge whilst power is on and will operate without power for approximately 4-5 hours which gives ample amount of time to open your shutters