The G10q T5 Circline 22W 840 Cool White Circular Fluorescent Tube is a compact circular replacement lamp designed for compatible fittings requiring a 22W G10q fluorescent circline lamp.

Producing a clean 4000K Cool White (840) light, this 22W circular fluorescent tube provides broad, even illumination from its compact ring-shaped design.

With an approximate 190mm outside diameter, this lamp is suitable for compatible ceiling lights, circular fittings and specialist fixtures designed specifically for this size and connector configuration.

This product is supplied under the Electroquip range with model reference EQ-CFC22840/T5, making the model number particularly useful when identifying or replacing an existing lamp.

Key Features

• 22W circular fluorescent lamp
• T5 Circline design
• G10q base
• 840 colour code
• 4000K Cool White
• Approx. 190mm outside diameter
• Approx. 17mm tube diameter
• Circular / ring-shaped fluorescent tube
• Broad and even light distribution
• Compact fluorescent design
• Suitable for compatible G10q circline fittings
• Electroquip model EQ-CFC22840/T5
• Ideal replacement for compatible 22W G10q circular fluorescent lamps

Technical Specifications

Compatible & Replacement References

This 22W 840 G10q T5 Circline fluorescent lamp is intended for compatible fittings requiring the same key specifications:

22W • G10q • T5 • 840 • 4000K • Approx. 190mm

Useful product and replacement references include:

Electroquip Cross-Reference

The most useful exact product reference for this lamp is:

Electroquip EQ-CFC22840/T5

The product packaging confirms:

T5 • 22W • EQ-CFC22840/T5

Customers replacing an existing Electroquip circular fluorescent lamp should check for EQ-CFC22840/T5 on the lamp or original packaging.

The key replacement specifications are:

22W • T5 • G10q • 840 • 4000K • Approx. 190mm

Important: Always confirm the wattage, base/connector, colour temperature and physical diameter of your existing circular fluorescent lamp before ordering.

Common Applications

The G10q T5 Circline 22W 840 fluorescent lamp is commonly used in compatible:

• Circular ceiling fittings
• Residential ceiling lights
• Hallways
• Apartment lighting
• Commercial lighting
• Offices
• Utility areas
• Hospitality environments
• Task-lighting fixtures
• Specialist circular fittings
• Decorative circular fluorescent fixtures

The circular design distributes light around the ring, providing broad illumination from a relatively compact fitting.

How to Identify the Correct Replacement

Circular fluorescent lamps can look very similar while having different wattages, diameters, bases and colour temperatures.

For this product, check your existing lamp for:

22W + T5 + G10q + 840 + 4000K + Approx. 190mm

You may also find:

EQ-CFC22840/T5

22W/840

G10q

840

4000K

or similar identification printed on the lamp.

If your existing lamp is difficult to identify, measure the outside diameter and inspect the connector before ordering.

What Does 840 Mean?

The 840 colour code identifies the colour characteristics of the fluorescent lamp.

8 = CRI approximately 80+

40 = approximately 4000K colour temperature

Therefore:

840 = CRI 80+ / 4000K Cool White

This is useful when identifying older fluorescent lamps because 840 may be printed on the tube even when 4000K is not shown.

G10q Base – Important Compatibility Information

This product uses a G10q base.

The correct connector is just as important as the lamp's wattage and diameter.

For this product, check:

✓ 22W

✓ T5

✓ G10q

✓ 840

✓ 4000K Cool White

✓ Approx. 190mm outside diameter

Do not select a replacement based only on the fact that it is a 22W circular fluorescent lamp.

840 / 4000K Cool White Light

The 840 / 4000K Cool White colour provides a clean, neutral-white appearance suitable for both residential and commercial environments.

Common applications include:

• Kitchens
• Offices
• Hallways
• Utility rooms
• Apartment common areas
• Commercial interiors
• Retail environments
• Work areas
• General-purpose ceiling lighting

If maintaining the same light appearance as your existing installation is important, check for 840 or 4000K on your old tube.

How to Measure a Circline Lamp

Measure the outside diameter across the complete circular lamp, from the outside edge of the tube on one side to the outside edge on the opposite side.

For this product, the outside diameter is approximately:

190mm

The tube itself is approximately:

17mm diameter

Checking these measurements together with the G10q base and 22W rating helps prevent ordering the wrong circular lamp.

Need Help Finding the Correct Circline Lamp?

If you're unsure whether this 22W G10q T5 840 Circline lamp is the correct replacement, send NZ Lights a clear photo of your existing lamp showing the printed markings and connector.

If possible, also provide its outside diameter.

We can help identify the correct wattage, base, colour temperature and physical size required for your fitting.

Why Buy from NZ Lights?

NZ Lights specialises in replacement lamps and hard-to-find lighting products for residential, commercial and professional applications throughout New Zealand.

• Specialist replacement lighting range
• Hard-to-find Circline and fluorescent lamps
• Multiple circular lamp sizes and wattages available
• Single and bulk quantities available
• NZ-based support
• Fast nationwide delivery
• Daily dispatch from Christchurch, New Zealand