Nikon Speedlight SB-5000 is the first model featuring 2.4GHz radio communication for slave and master mode.. It weighs 420g, slightly heavier than the SB-9XX units. The menu system is similar to SB-700 and 9XX series. It uses a dot matrix display with led illumination unlike SB-700 and 9XX series' EL illuminator. The modeling button makes a return. It is slightly more powerful than the previous models however still less powerful than the SB-800. The head contains a fan activated after a short period of use to prevent overheating. This feature promotes more frequent and consecutive flashes without heat issues.