Ossun GU10 Long-Neck LED Bulbs, 9W, 4000K, 6-Pack

Ossun GU10 LED bulbs are a six-pack of long-neck spotlights rated at 9W and 720 lumens, with a 4000K white colour temperature. Their stated 80mm length may not fit every spotlight housing, and the listing says they are not dimmable.

At a glance

Six long-neck GU10 LED bulbs, listed as 50mm wide and 80mm long.
The listing claims 720 lumens per bulb, a 120-degree beam and 4000K white light.
The product description specifies non-dimmable operation and warns against use with dimmer switches.
The stated 80mm length is longer than a traditional halogen bulb, so fitting clearance matters.

Price

£28.64Save 20%

Reference price: ~~£35.80~~

Price checked: 14 Nov 2026

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Pros and cons

Pros

A six-bulb pack can replace several GU10 spotlights at once.
The broad stated 120-degree beam is suited to wider coverage than a narrow spotlight beam.
4000K light and a stated 720-lumen output suit buyers seeking bright, neutral-white room or cabinet lighting.

Cons

Non-dimmable, so unsuitable for circuits that require dimming.

Technical specifications

27 specifications

Identity and format
Brand	Ossun
Model	GU10 Led Bulb
Bulb type	LED
Base	GU10
Shape size	PAR16
Style	Long Neck
Pack quantity	6

Light output
Colour temperature	4000 Kelvin
Colour description	Daylight
Maximum light output	720 Lumens
Beam angle	120 Degrees
Colour rendering index	80
Halogen equivalent	80 Watts

Power and operation
Power consumption	9 Watts
Power configuration	Corded Electric
Voltage	230 Volts (AC)
Accepted voltage and frequency	100 to 240 Volts and 50 Hertz to 60 Hertz
Dimming	Non-Dimmable
Listed features	Energy Efficient, Eye-Friendly, Instant On

Dimensions and construction
Size	50mm diameter x 80mm length
Material	Aluminium
Weight listed	0.62 Kilograms
Indoor or outdoor use	Indoor

Life and energy label
Average lifespan	35000 Hours
Energy efficiency label	A++

Connectivity and controls
Wireless connection listed	Infrared
Control methods listed	App

What to know before buying

Listing details to confirm

Listing details are inconsistent or unconfirmed: the title and description give 9W and a 4000K daylight-white output, while a details field gives 9 Watt-hours and another calls the colour Daylight. Voltage is listed as both 230 Volts (AC) and 100 to 240 Volts and 50 Hertz to 60 Hertz. The page also lists infrared and app control for bulbs described as standard GU10 replacements, so those control details are unclear. Confirm the selected listing and fitting requirements before purchase.

What’s in the box

6 GU10 LED bulbsCheck selected pack
noIncluded

Check which accessories are included in your selected pack before buying.

Who is it for?

A good fit for

Replacing multiple GU10 bulbs in indoor spotlights where 4000K white light and a broad beam are wanted.
Buyers whose fittings have room for an 80mm-long bulb.
Lighting circuits that do not require dimming.

Less suited to

Dimmable fittings or users who need to adjust brightness.
Spotlight housings with clearance too short for an 80mm bulb.

Ossun GU10 Long-Neck LED Bulbs, 9W, 4000K, 6-Pack · photo 2 — Additional product photo 2

Customer reviews on Amazon

3.8 / 5 · 8 ratings

5 stars52%52%
4 stars24%24%
3 stars0%0%
2 stars0%0%
1 star24%24%

Aggregate customer ratings are mixed, with a modest overall rating and both five-star and one-star responses represented in a small sample. That spread offers limited guidance on consistency. Buyers should judge the stated 9W, 720-lumen, 4000K and non-dimmable specifications against their own fitting and lighting needs.

Frequently asked questions

Are these bulbs dimmable?

No. The product description identifies them as non-dimmable and warns against using them with a dimmer switch.

How long are the bulbs?

The listing gives a size of 50mm diameter by 80mm length. Check the available clearance in the fitting, as the page notes that they are longer than traditional halogen bulbs.

What light do they produce?

The listing claims 4000 Kelvin and 720 lumens, with a 120-degree beam angle.

What voltage do they support?

The page gives both 230 Volts (AC) and a 100 to 240 Volts, 50 Hertz to 60 Hertz range. Because these details differ, confirm compatibility before buying.