Tejas Jani July 03, 2025

The Complete Guide to 2D Lamps in New Zealand

Understanding Wattage, Pin Types, Colour Temperature & Finding The Right Replacement

Replacing a 2D lamp can be confusing.

Many customers search for a replacement and find several lamps that look almost identical, but small differences such as wattage, pin configuration and colour temperature can determine whether the lamp will work correctly.

At NZ Lights, we help New Zealand customers find the correct replacement lamps for homes, commercial buildings, offices, emergency lighting systems and specialist applications.

This guide explains everything you need to know before purchasing a 2D replacement lamp.

What Is A 2D Lamp?

A 2D lamp is a compact fluorescent lamp with a unique square-shaped design.

Unlike traditional fluorescent tubes, the tube is folded into a compact "2D" shape, allowing manufacturers to create smaller light fittings while still providing good illumination.

2D lamps are commonly found in:

✓ Ceiling lights
✓ Emergency lighting
✓ Commercial buildings
✓ Offices
✓ Public facilities
✓ Security lighting
✓ Wall-mounted fixtures

They are popular because they provide:

Bright, even illumination
Compact size
Long operating life
Reliable performance

Why Do Customers Get Confused When Buying 2D Lamps?

The most common mistakes are:

1. Choosing The Wrong Wattage

2D lamps are available in different wattages.

Common examples include:

A higher wattage lamp is not always a suitable replacement.

You must match:

✓ Wattage
✓ Physical size
✓ Pin configuration
✓ Ballast compatibility

For example:

A 38W 2D lamp may look similar to a 28W version, but it may not be compatible with your existing fitting.

2-Pin vs 4-Pin 2D Lamps

This is the biggest area of confusion.

Two 2D lamps may have:

✓ Same shape
✓ Same wattage
✓ Same colour

but different bases.

2-Pin 2D Lamps

2-pin lamps have two electrical connection pins.

They are commonly used in simpler fittings with integrated starters.

Before ordering, check:

Pin spacing
Lamp wattage
Colour temperature

4-Pin 2D Lamps

4-pin lamps use a different connection system.

They are often used in:

Commercial lighting
Electronic ballast systems
Professional fittings

A 4-pin lamp cannot simply replace every 2-pin lamp.

How To Identify Your Existing 2D Lamp

Before ordering, check the information printed on the lamp.

Look for:

Wattage

Example:

Pin Type

Example:

2-pin
4-pin

Colour Temperature

Example:

3000K Warm White
4000K Cool White
6500K Daylight

Brand

Common brands include:

Philips
Osram
GE
Sylvania

Warm White, Cool White Or Daylight?

Choosing the correct colour temperature changes how your space looks.

Warm White (3000K)

Best for:

Homes
Reception areas
Hospitality

Creates a comfortable and relaxing atmosphere.

Cool White (4000K)

Best for:

Offices
Shops
Work areas

Provides a clean professional appearance.

Daylight (6500K)

Best for:

Workshops
Inspection areas
Detailed tasks

Provides a brighter, sharper appearance.

Replacing A 2D Lamp? Follow These Steps

Before purchasing:

Step 1

Remove the old lamp safely.

Step 2

Check the writing printed on the lamp.

Step 3

Confirm:

✓ Wattage
✓ Pin type
✓ Colour temperature
✓ Lamp dimensions

Step 4

Match it with the correct replacement.

NZ Lights 2D Lamp Range

NZ Lights supplies replacement 2D lamps for residential, commercial and specialist applications.

Our range includes different wattages and configurations to help customers find the correct replacement.

Browse:

➡️ 2D Lamps Collection
https://nzlights.co.nz/collections/2d

Still Not Sure Which 2D Lamp You Need?

The easiest way:

Take a photo of your existing lamp.
Take a close-up photo of the base/pins.
Send it to NZ Lights.

We can help identify the correct replacement and avoid ordering the wrong lamp.

Why Choose NZ Lights?

✓ NZ-owned specialist lighting supplier
✓ Genuine quality replacement lamps
✓ Expert help identifying difficult lamps
✓ Residential and commercial customers supported
✓ Fast delivery across New Zealand

Whether you need a replacement 2D lamp for your home, office, emergency fitting or specialist application, NZ Lights makes finding the correct lamp easier.

About NZ Lights

NZ Lights is a New Zealand-owned specialist lighting supplier with over 5 years of experience supplying replacement lamps for healthcare, dental, commercial, industrial and specialist applications.

From medical examination lights and dental equipment to specialist halogen, fluorescent and LED lamps, we help customers identify difficult-to-find replacements using model numbers, lamp specifications and equipment requirements.

Whether you're replacing a single bulb or sourcing lamps for a hospital, clinic, business or facility, our team is here to help you find the correct solution.

Need help identifying your lamp? Contact NZ Lights or send us a photo of your existing lamp, and we'll help you find the correct replacement.