Not to get too technical, but the first advantage that infrared technology has over its competitors is that the infrared light spectrum has one of the widest bandwidths . This means that it can theoretically be extremely fast with very large amounts of data if set up correctly. The correct configuration is for short distances outdoors at night or for a LAN within a number of adjacent rooms. If set up correctly, an infrared connection can be extremely reliable if nothing passes through its transmission path. If the area where you wish to build a network falls within the guidelines, then an extremely significant advantage is the low cost associated with infrared