Tube Light Wiring Connection With Diagram

Tube Light connection

Learn how to wire a tube light with choke, starter, and ballast. Step-by-step diagram for proper phase, neutral, and earthing connections.

tube light connection with choke

Tube light wiring is wired with the phase passing through a choke and starter onto to tube ends, with Neutral then passing on to the other side. The starter is used to aid in ionizing the first time around, and the choke provides control over current flow.

fluorescent tube wiring system

A tube light wiring connection is a simple electrical connection found at home, in the workplace, and in industry. There are four essential parts of a fluorescent tube: the tube light, the choke (ballast), the startand the capacitor (not mandatory, to improve power factor). One end of the choke is connected to the Phase (Line) wire, and to one pin of the tube light. The other extremity of the choke is joined to the starter, and the other extremity of this type of tube. The other end of the tube light is connected to the other pin opposite the Neutral wire. When the switch is ON, current is passed through the choke and starter to warm the filament in the tube, producing ionization. When the tube is ionized, the tube light begins to glow. The earthing must be properly earthed, also to ensure safety.

Work / Installation (Inputs → Outputs)

Input: Phase (Line) → Switch → Choke → Tube pin A
Starter: Between Choke and Tube pin B
Neutral: Direct → Tube pin C
Output: Tube emits light after ionization

Testing and Final Adjustments

Once all the parts have been hooked up, turn ON the supply. The starter will be flickering because it will be heating the tube filaments. The tube will then glow after two or three seconds. When the tube is not glowing, check the starter, choke, and they could be defective. Make sure that all wire intersections are closed off and insulated. With a multimeter, measure the voltage of the check supply (usually 220 V -240 V AC). Where flickering occurs, change the starter or capacitor. To be on the safe side, leave the switch off when handling wiring. Always select the correct color-coded wires: red/brown Phase, black/blue Neutral, and green/yellow Earth.

Frequently Asked Questions - Tube Light connection:

What components are needed for tube light wiring?

Tube light, choke (ballast), starter, capacitor, switch, and wires.

Where does the phase wire connect?

Phase connects first to the choke and then to one end of the tube light.

What is the function of the choke?

The choke limits current and provides high voltage surge to start the tube.

Why is a starter used?

The starter helps preheat the filament and initiate the discharge in the tube.

Where is the Neutral connected?

Neutral is directly connected to the opposite pin of the tube light.

Can LED tube lights use the same wiring?

No, LED tube lights have different wiring; some require direct phase and neutral.

What if the tube light flickers?

Replace the starter or check the capacitor for proper functioning.

Is earthing required for tube light?

Yes, earthing ensures user safety against electric shock.

Can I connect a tube light without a starter?

Yes, in electronic ballast tube lights, starters are not required.

How to test a faulty tube light?

Check the choke, starter, and supply voltage with a multimeter.

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