Flu lamp ballast

I was wondering why is it that some of the LED flu lamp replacement tubes say to leave the choke in circuit I don't see what good it does apart from dropping a few volts   also I would think the little voltage Spike at switch off wouldn't be helpful either

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  • Thankyou for your replys I'm familiar with the way a normal flu lamp works and what the choke does. I've always had an interest in lighting. I think I can say to the person who asked me about chokes in LED conversions that it makes no difference in also I will point out the safety I p,ications if a real tube is put back in with no choke. Myshack/workshop is lit by 2x36 watt magnetic ballast tubes plus one HF ballast tube wattage unknown  I've noticed in this cold weather the mag ballast ones flicker when very cold but the HF one although at the same temperature just appears dim with a noticeably dimmer patch about a third of the way along. I'm not concerned about it its just an observation

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  • Thankyou for your replys I'm familiar with the way a normal flu lamp works and what the choke does. I've always had an interest in lighting. I think I can say to the person who asked me about chokes in LED conversions that it makes no difference in also I will point out the safety I p,ications if a real tube is put back in with no choke. Myshack/workshop is lit by 2x36 watt magnetic ballast tubes plus one HF ballast tube wattage unknown  I've noticed in this cold weather the mag ballast ones flicker when very cold but the HF one although at the same temperature just appears dim with a noticeably dimmer patch about a third of the way along. I'm not concerned about it its just an observation

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