What is the use of starter and choke in the fluorescent tube(Tube Light) ?

Question

And Why so when current is insuffisunt i.e., power supply is low, the ordinary lights glow's dim where as the tube light i.e., flurosent tube doesn't glow at all?

Answer 1

I'm not typing it all out... the answers are on the 2 website down below :-)

Answer 2

In a CFL bulb or an ordinary fluorescent bulb, the "white" color we see is produced by a fluorescent coating on the glass of the bulb, which converts some of the invisible ultraviolet light produced by the excited gas atoms into visible light. When you cut off the current, you stop exciting the gas atoms and thus stop producing new ultraviolet light, but there may be enough residual excitation in the material to keep glowing for awhile after the power has been disconnected. This would be similar to the way glow-in-the-dark materials work-- those absorb UV light when they're in bright light, exciting atoms and molecules in the material, which then slowly emit visible photons.