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Author Message   Der_uli Tinkerer Username: Der_uli Post Number: 14 Registered: 05-2010 Rating: N/A Votes: 0 Posted on Wednesday, September 08, 2010 - 07:27 am:    For the pricier versions of flashbulbs you may find technical data at Perkin Elmer's website. The little ones in photgraphic equipment all share similar properties: around 300-400 Volts and several wattseconds of energy. You only have to look for similar length and diameter. Hobby electronics stores carry them, e.g. http://www.conrad.de/ce/de/FastSearch.html?search=blitzroehre&=Schnellsuche&init ial=true here in Germany.