This is a modification to dealextreme.com/p/dual-e27-sockets-lamp-bulb-holder-flash-umbrella-bracket-103135?item=6?r=78675737 Alone it can be used for lighting video with 2 or in conjunction with dealextreme.com/p/e27-to-dual-e27-light-lamp-bulb-adapter-converter-94131?item=2&r=78675737 with 4 light bulps as a very strong video light. With a large umbrella it's a soft and and without a hard video light. When you want photo and video, this modification allows to place a flash on the same umbrella. The hot show is tapared to allow for easy insertion of the flash. I provided a technical drawing with the dimentions and spacing used, in case someone wants to design a different moficiation for this umbrella holder. blog posting: marcuswolschon.blogspot.de/2012/08/umbrella-flash-holder.htmlInstructions:Unscrew the top plate. Keep the 2 screws. Slide on this part and insert the screws into the 2 center recesses. You can use 4 additional screws for the edges. The original part has holes for 4 additional screws but does not use them. It can be a snug fit if your layer height is too large. In that case try to insert a flash while the plastic is still warm. The print you see was aborted after that damn Thing-o-Matic failed after 25 of 60 minutes. (The usual extruder-jamming when the PLA gets too hot due to an obvious design fault of the hot end.)