I have a hand held 'stick' light to plug in 220V which stopped working. As an ex engineer I always try to fix things and failing this I want to know why it failed. Either the unusual 'tube' is blown or something else. I stripped it and found this little component which looks black/blown. It almost looks like mini bulb, but could be something else.
I do not know what it is. Can that prevent the bulb to work? Can you help?
Is there any way to check the bulb?
There is no switch, wiring looks intact.Click image for larger version. 

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