Starter function in tube light


How does a fluorescent starter work?

When you turn on a fluorescent tube, the starter is a closed switch. The filaments at the ends of the tube are heated by electricity, and they create a cloud of electrons inside the tube. The fluorescent starter is a time-delay switch that opens after a second or two. When it opens, the voltage across the tube allows a stream of electrons to flow across the tube and ionize the mercury vapor.

Insight – How Tubelight Starter works

When power is first applied, the starter is open initially, so the argon filled bulb inside lights up, heating the thermal switch that closes to heat the filaments in the fluorescent tube. This is to lower the initial voltage required to start current flowing through the gas inside the fluorescent tube. Partly by heat ionization, but also by evaporating the small amount of mercury inside. Fluorescent tubes have mercury in them because gaseous mercury lowers the “strike” voltage.

Starter function in tube light

What is the role of a starter in a tube-light?

Fluorescent tube-lights convert an electric discharge in the mercury vapour present in the tube, into visible light at the phosphor coating inside the tube. But this discharge cannot take place of its own when the normal supply voltage is applied, because this voltage is not sufficient to cause ionization of the gas in the tube. In order to strike this discharge, an ingenious combination of a set of filaments (at the ends of the tube), a choke (Inductor coil) and a starter is used.

Starter function in tube light

What is Tube Light?

Fluorescent tube-lights convert an electric discharge in the mercury vapour present in the tube, into visible light at the phosphor coating inside the tube. But this discharge cannot take place of its own when the normal supply voltage is applied, because this voltage is not sufficient to cause ionization of the gas in the tube. In order to strike this discharge, an ingenious combination of a set of filaments (at the ends of the tube), a choke (Inductor coil) and a starter is used.

Starter function in tube light

Easy fixes for slow to start, flickering or faulty fluorescent tubes

If you are experiencing any of the following problems with your fluorescent tubes then this page will tell you how to fix them, including information on what has likely caused the problem and how to check your starters and ballasts:

Starter function in tube light

Tube Light connection diagram

Here  another terminal in tube light is directly connected to the AC supply, to ionize the mercury atoms in the tube light starter element is used, after the ionization operation of starter is does not need for fluorescent lamp. the ballast employed to convert the AC supply frequency to high frequency and the ballast regulates the supply given to the tube light.

Starter function in tube light

Fluorescent Light Problems and Repair

The starter is located on the lamp frame (there are typically two starters). When you turn on the light switch, the starter sends a jolt of electricity to the gas inside the fluorescent bulb. The ionized gas then conducts electricity and the bulb lights. When the starter stops working, the bulbs will either keep flickering without lighting or will only glow in the ends. (Flickering can also indicate the bulb needs replacing, but try the less expensive starter first.)

Starter function in tube light

Primary Sidebar

1. Check that the starter is a glow starter by opening the starter-housing with a small cut parallel to the long side (see rectangular in second image). The housing is used again later on, so omit a complete destruction. If the disassembled starter looks like the second picture, it is a glow starter.