Elinchrom Flashtube (250/500 W/S) for BXRi and Quadra A Flash HeadsProduct Code: 24000@AED 550 ($ 149.25 )This Elinchrom Flashtube (250/500 W/S) for BXRi and Quadra A Flash Heads is a user-replaceable, UV twin-electrode flashtube which a unique super short flash duration (as short as 1/6000 sec.) when used with the Ranger Quadra A head.  Plug-in A Flashtube, user replaceableUV coatedCompatible with Ranger Quadra A-Head and BXRi 250/500