LED G9 Lamps

(10 products)

G9 LED bulbs from Harbro Electrical are the small two-pin capsule bulbs used in modern pendant lights, chandeliers, wall lights and decorative ceiling fittings. Browse warm white (2200K and 2700K) and cool white (4000K) options, with both dimmable and non-dimmable G9 bulbs from Bell Lighting and Integral LED, the brands our trade customers fit every day.

Every G9 LED bulb in this collection is held in stock at our Peterlee warehouse, with same-day dispatch on orders placed before 3pm. As a trade wholesaler, our prices exclude VAT and we ship UK Mainland orders over £70 free of charge.

G9 LED bulb buying guide

The G9 LED bulb has replaced the halogen G9 capsule as the default choice for decorative fittings across the UK. A G9 is a 230V mains-voltage bulb with two looped pins spaced 9mm apart that push directly into the lampholder, with no transformer needed. The switch from halogen to LED gives roughly 85% energy saving, around ten times the lifespan, and almost no radiant heat, which makes a significant difference when a chandelier holds twelve of them.

This guide covers what to look for when ordering G9 LED bulbs, the warm-white versus cool-white decision, dimmable compatibility, and the fittings G9 lamps are typically specified for.

Wattage, lumens and halogen replacement

Halogen G9 bulbs were typically 25W, 33W or 40W. Their LED equivalents draw a fraction of that wattage while producing comparable light output:

Halogen G9Equivalent LED G9Lumens (approx)Energy saving25W halogen1.8W to 2.2W LED200 lmapprox. 91%33W halogen2.7W to 3.5W LED300 to 400 lmapprox. 89%40W halogen4.4W LED500 to 600 lmapprox. 89%

For chandeliers and multi-lamp pendants, lumens matter more than wattage. A 12-arm fitting with 200-lumen capsules delivers substantial cumulative light. Match the bulb to the room: kitchens and bathrooms benefit from higher-output 4.4W variants, while bedrooms and hallways usually suit the 1.8W to 2.7W capsules.

Warm white vs cool white G9 LED

Colour temperature is measured in Kelvin (K). G9 LED bulbs are most commonly stocked in three temperatures:

2200K (extra warm white) produces an amber, candle-like light used to mimic vintage filament or create decorative atmosphere. Bell Lighting’s 61042 and 61044 sit here.
2700K (warm white) is the closest match to traditional halogen and the default choice for living rooms, bedrooms, dining rooms and most decorative pendant lighting.
4000K (cool white) produces a neutral, slightly blue-white light specified for kitchens, bathrooms, utility rooms and commercial applications where colour accuracy matters.

If you are replacing existing halogens, 2700K is the safe like-for-like swap. Mixing colour temperatures in the same fitting will be visibly noticeable and is something our team would advise against.

Dimmable G9 LED bulbs

Not every G9 LED is dimmable, and fitting a non-dimmable LED on a dimmer circuit causes flicker, premature failure, and occasionally audible buzzing from the dimmer module. Every dimmable G9 in this collection, including the Bell 61042, 61043, 61044 and 61045 series and the Integral ILG9DC011, ILG9DC014, ILG9DC021 and ILG9DE022, works with mainstream UK trailing-edge LED dimmers. If you are replacing an old rotary dimmer that previously controlled halogens, factor in a dimmer upgrade at the same time, as older leading-edge dimmers often misbehave with low-wattage LED loads.

Common fittings and compatible products

G9 LED capsules are the standard lamp for most decorative fittings sold in the UK. The ranges below all take G9 bulbs and are available through Harbro:

Trade buyers: bulk pricing on G9 bulbs

If you are fitting a multi-arm chandelier or kitting out a new-build, talk to us about volume pricing. Most of our G9 LED stock moves in box quantities to electricians across Peterlee, Sunderland, Hartlepool and the wider North East, and we also ship trade orders UK-wide on next-working-day. Call 0191 5181998 or email sales@harbroelectrical.co.uk.

Why buy your G9 LED bulbs from Harbro Electrical?
Harbro is an independent electrical wholesaler founded in 1994 and based at our 10,000 sq ft warehouse and showroom in Peterlee, County Durham. We carry over £500,000 of stock and supply trade contractors, facilities teams and construction firms across the UK. G9 LED bulbs are one of our highest-volume lines, which means consistent stock depth, competitive pricing, and staff who can answer the questions a website cannot.

G9 LED bulbs: frequently asked questions

What is a G9 LED bulb?

A G9 LED bulb is a small mains-voltage (230V) capsule bulb with two looped pins spaced 9mm apart that push directly into a G9 lampholder. The "G" refers to the bi-pin base type and the "9" is the pin spacing in millimetres. G9 LED bulbs have replaced halogen G9 capsules as the standard lamp for decorative pendants, chandeliers, wall lights and flush ceiling fittings.

Can I replace a halogen G9 with a G9 LED bulb?

Yes. G9 LED bulbs are designed as direct retrofit replacements for halogen G9 capsules. They fit the same lampholder, run on the same 230V mains supply, and require no transformer. A 2.7W LED G9 replaces a 33W halogen and a 4.4W LED G9 replaces a 40W halogen, with comparable light output and around 89% less energy used. If the fitting is on a dimmer circuit, choose a G9 LED bulb that is marked dimmable.

Are G9 LED bulbs dimmable?

Some are and some are not, and it is specified per product. Fitting a non-dimmable LED to a dimmer circuit causes flicker and reduces bulb life, so always check the specification before ordering. If you are upgrading from halogens that were on a leading-edge dimmer, you will usually need to replace the dimmer with a trailing-edge LED-compatible model at the same time.

What is the difference between warm white and cool white G9 LED bulbs?

Warm white G9 LED bulbs (2700K) produce a yellow-toned light that closely matches traditional halogen and suits living rooms, bedrooms and dining areas. Cool white G9 LED bulbs (4000K) produce a neutral, slightly blue-white light suited to kitchens, bathrooms, utility rooms and commercial spaces. A 2200K extra-warm option is also available, producing a candle-like amber light used in atmospheric decorative fittings. Avoid mixing colour temperatures within the same fitting, as the difference will be clearly visible.

Frequently asked question

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What wattage G9 LED bulb do I need?

For most decorative applications, a 2.7W or 3.5W G9 LED bulb is the right choice, giving roughly the same output as a 33W halogen. For kitchens or task lighting where more brightness is needed, choose a 4.4W G9 LED, which produces around 600 lumens and replaces a 40W halogen. For multi-arm chandeliers and large pendants holding 8 to 20 bulbs, 1.8W to 2.2W capsules at 200 lumens each will usually be sufficient, as the combined output from multiple low-wattage bulbs is considerable.

How long do G9 LED bulbs last?

A quality G9 LED bulb is rated for 15,000 to 25,000 hours of use, compared to around 2,000 hours for a halogen G9. In a typical domestic fitting used 3 hours a day, that represents 15 to 20 years of service. Lifespan depends on the fitting design (enclosed fittings trap heat and shorten LED life), driver quality, and whether the bulb is run on a compatible dimmer. Bell Lighting and Integral LED, the brands stocked in this collection, are established UK lighting manufacturers with consistent driver quality.

Why is my G9 LED bulb flickering?

The three most common causes are: a non-dimmable LED fitted to a dimmer circuit (replace with a dimmable G9 LED); a leading-edge dimmer designed for halogen loads being used with LED bulbs (replace with a trailing-edge LED-compatible dimmer); or a loose bulb in the holder, as G9 pins occasionally require a firm push to seat properly. If a dimmable bulb on a compatible dimmer still flickers at low brightness, adjusting the dimmer’s minimum-load trim setting usually resolves it.

Do you supply G9 LED bulbs in bulk for trade?

Yes. Harbro Electrical is a trade wholesaler: all prices exclude VAT, we offer volume pricing on box-quantity orders, and we ship trade orders UK-wide on next-working-day. For larger project quantities or stock orders, call our sales team on 0191 5181998 or email sales@harbroelectrical.co.uk with the SKU and quantity required.

Where are you based and how fast is delivery?

We are at 5 and 6 Whitworth Road, Peterlee, County Durham SR8 2LY, a 10,000 sq ft trade showroom and warehouse serving the North East and the rest of the UK. G9 LED bulb orders placed before 3pm Monday to Friday are dispatched the same working day. UK Mainland delivery is free on orders over £70 and £5.99 below that threshold. Trade customers in County Durham, Tyne and Wear and Teesside are welcome to collect from the showroom during opening hours.