Dencon Fluorescent Starter - 4-65W - FSUNB

This Dencon fluorescent starter is designed for use with 4-65W tube light fittings. Engineered to ...

Best current price£0.90from Power Tools Direct

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Power Tools DirectDencon Light Fsunb Fluorescent Starter 4-65W Fsunb
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Blueperry agriculture (UK)Dencon Light Fluorescent Starter 4-65W Fsunb
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B&QB&Q - Fsunb Fluorescent Starter 4-65W Fsunb Dcn1170
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OnBuy.comDencon Fluorescent Starter 4-65W - Fsunb Light 5012292199107
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Product Information

Full details

The Dencon Fluorescent Starter (FSUNB) is an essential component for DIYers and professionals looking to restore reliable performance to 4-65W fluorescent tube lighting fixtures. It offers a straightforward, durable solution for replacing faulty components to eliminate flickering or failed starts; however, users should ensure their current fixture wattage falls within the 4-65W range before installation, as it is not designed for high-output or non-compatible tube configurations.

All features

Model Part NumberFSUNB
BrandDencon

Extended Product Information

FAQs

Will this work with my 20W tube light?

Yes, this starter is compatible with any tube light fixture between 4W and 65W.

Can I use this for an LED tube upgrade?

No, LED tubes usually require a ballast bypass and do not use a starter.

How do I know when to replace the starter?

Replace the starter if the tube flickers excessively upon startup or if the light refuses to turn on even with a new tube.

Is this suitable for outdoor fixtures?

The FSUNB is designed for standard fixtures; ensure your outdoor fixture is weather-rated to protect the starter and electrical components from moisture.

Does this starter contain mercury?

The starter itself is an electrical component and does not contain mercury, though the fluorescent tubes it controls typically do.

Troubleshooting

Tube still does not light after starter replacement

Check the fluorescent tube itself for blackening at the ends, which indicates the tube has reached the end of its life.

Starter feels loose in the socket

Ensure the starter was rotated fully until it locked; if the socket is damaged or corroded, the fixture may need an electrical inspection.

Humming noise persists after installation

A persistent hum often originates from the ballast, not the starter. If changing the starter does not help, the ballast may be failing.

Pros and Cons

Pros

  • Compatible with a wide 4-65W power range
  • Easy to install in standard fixtures
  • Reduces lamp flickering and startup delays
  • Durable build quality for long-term reliability

Cons

  • Limited to specific wattage range
  • Not compatible with LED tube replacements
  • Requires manual removal and replacement of physical component

Setup, Compatibility & Care

Installation should always be performed with the fixture power turned off at the wall switch or breaker. Locate the cylindrical starter component on the side of the fluorescent fixture frame. Gently push in and rotate the old starter counter-clockwise to remove it. Insert the Dencon FSUNB into the socket, ensuring the pins align, then rotate it clockwise until it clicks into place. This product is intended for traditional magnetic ballast fluorescent fixtures; do not attempt to use this starter in fixtures that have been converted to LED tubes, as those often bypass the starter entirely. Periodically check for dust buildup around the socket to ensure optimal electrical contact.

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