Samsung SL36WJZi/XEU model No 4233. The Osram delux S/E 11w/21' FPL 11EX-W 1058 original bulb failed, I could not obtain an identical bulb locally ! But I managed to get an Osram delux S/E 11w/840 from the Osram stand in the DIY store , I inserted the new bulb it started to light up then failed..p.s. I live in Spain.. Q. Have I obtained an incorrect replacement bulb or is there some other possible problem ? Many thanks if you can help. Robert Burgess...