You must be aware of the sudden voltage spikes and high voltage fluctuations which have become a common occurrence today. With the problem becoming common today you must be on the lookout for a good supply instrument which can minimize the losses which are caused in these situations. Some supply instruments will help you in the absence of current. The supply instruments are available for CCTV cameras as well. CCTV cameras are used to record activities which take place in the area. To ensure that the CCTV woks well you will need CCTV redundant power supply.