Thing attached to a fluorescent tube.

Question

What is this component? It was in the case of the fluorescent tube. Seems to be made up of laminated metal.

jc2048 · Answer

https://en.wikipedia.org/wiki/Electrical_ballast

electronicbiker · Answer

Also known as a choke. Don't forget you need a starter to go with it, usually a round metal tube about an inch long, closed at one end, with two top-hat pins at the other end. The pins are a bayonet connection to a socket inside the metal casing. The rating needs to be selected to match the tube. I see there is a wiring diagram printed on the choke, it looks ok to me but the table of ratings is too blurred for my eyesight! Good luck, and be careful of mains voltages. 
 I changed the fittings in my garage for LED tubes not long ago as the old tubes were getting dimmer and the flashing on start-up was getting longer. Those old tubes had lasted at least 20 years if not 30, and when I looked they were not available in that size any longer. The new LED tubes have got a lot to live up to!

Thing attached to a fluorescent tube.

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