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ProNXT Dimmable 4W GU10 LED Bulb (315 Lumens) 45° Beam Angle


ProNXT Dimmable 4W GU10 LED Bulb (315 Lumens) 45° Beam Angle

  • Free ShippingOrders over £40

  • 14 DayCancellations

  • 5 Years*Warranty

Key Features:
  • GU10
  • 300
  • 4w
  • 50w
  • 220v-240v AC
  • 55mm
In stock

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    £4.20 each
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    £4.10 each
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    £4.00 each
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  • Free ShippingOrders over £40

  • 14 DayCancellations

  • 5 Years*Warranty

With a narrow 45° beam and a 315 Lumen output, this dimmable 4W GU10 LED Bulb manufactured by Mirrorstone is the perfect replacement for your 45-50W halogen spotlights. As you can swap your halogen GU10s straight over with these, you can start saving money immediately.

You can save even more money than just what's coming off of your electricity bills. When buying over 10 or more of them you can benefit from the multi buy discount saving you money before they've even left our warehouse.

On top of this, along with all of our GU10 LED lights, you can get additional discount with any of the discount codes that are consistently ran. Ranging from 10% to 20% you can make a saving of up to 25%!

Introducing ProNXT

The ProNXT generation of LED spotlights has been finely tuned to squeeze every last drop of performance out of them. The lumens-to-watts ratio has been greatly improved, with a brighter light for less energy usage. The heat sink has been tightened, with pristine materials used, to disperse heat better. This lengthens the lifespan of the bulb massively.

Replicating Your Halogen Spotlights Brilliantly

Our GU10 4w LED Spotlights come with 3 individual super power LEDs. Being manufactured close together, it allows the spotlight to deliver a narrow 45° beam angle replicating 45w halogen spotlights brilliantly. With a light level of 315 lumens you will struggle to find a 45w replacement as close as this.

The GU10 4w is available in 2 different colour variations making finding the correct light for what you are looking to do very simple. If you're not too sure exactly what colour you'd want in your fitting then have a read of our guide to colour temperatures so you can see what colour would be most suited to where you want to put your new LED Spotlights.

Dimming Your New LEDs

If you're looking to dim your spotlights then you do have this option available to you as we have a range of dimmable GU10 Spotlights, including our 27SMD and 7w COB.

Please note, if you are looking to dim your LED Spotlights then you would need either a Varilight V-Pro Dimmer Switch or a Varilight V-Com Dimmer Switch to dim any of our LEDs. You can also use any equivalent Low Load Trailing Edge dimmer switch, however we don't guarantee that they will be 100% compatible.

5 Year Warranty And 15 Year Lifespan

Every Mirrorstone product comes with a 2 year manufacturer's warranty so you are covered for up to 2 years after purchase. This standard two year warranty can be extended by 3 years to a 5 year warranty.

As well as being able to upgrade the warranty to 5 years, the estimated life span for each individual unit is over 15 years meaning you'll be making savings of up to 90% for up to 15 years in the future. The total estimated lifespan of 50,000 hours means that with 4 hours a day, you could have these lights installed for over 30 years!

Below there is a video that presents the features of LED GU10 products:

If you have any questions or have a query in regards to the colour temperatures, the dimming functionality of LEDs or anything else LED related then do not hesitate to contact us by phone on 0116 321 4120 or by e-mail on

More Information
Base GU10
Lumens 300
Power 4w
Equivalent Wattage 50w
Input Voltage 220v-240v AC
Height (mm) 55mm
Diameter (mm) 50mm
Life Hours 30,000
Beam Angle 45°
Dimmable Dimmable
Colour Warm White (3000k) & Cool White (6000k)
Warranty 2 Years Upgradable to 5 Years
Certification CE, RoHS
Brand Mirrorstone

4.60 Average

129 Reviews

John Mclellan

Excellent bulb. Very bright in cool white. Perfect for bathroom etc. Quick delivery and good price. Will shop here again.

John Strachan

Perfect light that matches the original design exactly. I have been struggling to find a bulb that matched the 8 year old bulbs fitted in my kitchen. This is an exact match. Speed delivery.j8

Helen Hargreaves

Great attractive light

William Smith

Just got delivered and installed, first class product and first class service. Will recommend Wholesale LED to all for future lighting products required.

Paul Harkness

excellent company who supply first class LED Bulbs, Cool white are excellent for what i was looking for thanks

Kim Pugh

Absolutely brilliant bulbs, exactly what I expected.

Iain Duncan

Colour and brightness exactly match existing LED lights. Delivered quickly. Great service.


Excellent service great product as described

Christopher Coxon

Its a replacement bulb and works job done


Very good service - site easy to use - items arrived on time and work well


Mixed feelings There was no sign of my delivery two weeks after my order was placed. I rang their customer service to query this and was told that it was out of stock and they were waiting for new stock to arrive which of course the company didn’t bother to contact me and advise me, However, their customer service advisor apologised and promised a delivery by mid week the following week and true to his word they did arrive then. They arrived as promised and I’m happy with the order.

Richard Brown

Exactly what I wanted, a pure white light so good in fact that I have ordered some more as these make ordinary bulbs look very yellow. Delivery was very prompt so no complaints all round

John Ansell

Excellent replacement for filament bulbs. Used in a desk lamp. Cool white is very white! Diameter is a bit smaller than the old bulb, so coverage not quite the same but easily good enough. The power saving is quite obvious, these run so much cooler than the bulbs they replaced.

Mike Parker



Patrick Fleming

Have not used them yet. They are for out holiday home. We will test them out in three weeks time. Kind Regards

John Mitchell

Ideal for bathroom plenty of light ,quick delivery shall use this company again

Robin Whiffen

Used in a wall spot. Gives a very good bright light. Don't know lifespan as yet but I guess it is probably longer than a filament bulb. I felt good value in present market place. Will use again.

Mark Donnelly


Great fixture for the bathroom. Gives it a new look

Christopher Ambrose

The replacement bulb matched the colour temperature perfectly. Very happy with the purchase.


Excellent service, bulbs fine.

Jim Skinner

Exactly as ordered with prompt delivery - great service

Neil Fraser

Do the job perfect A+++


The bulbs were just what I needed and after many weeks of trying to find what was wanted I was pleased. I was concerned however about the service as I had to wait a good few weeks for them and when I finally spoke to someone at WLED they advise of a bad stock situation but no one had advised me of this delay.

Patricia Kelly

Fantastic lights. We had some old LED lights which we were not sure of the perforance standard of and the kitchen was a merky yellow colour so we ordered these in the hope of brightening the place up and they worked perfectly. The light is a nice crisp white colour, the ktchen is brigher and easier to use. It saved us having to replace the light fittings for something that would have given us more light. The splay of light from these light bulbs mean that they reach right into the corners as well.


Arrived on time, well packed all working fine.


Great service. Received as described in a timely manner. Will definitely return. Thank you.


Easy to fit with excellent light output and matches my original bulbs.

Chris Bagnall

Great service & prompt delivery & great lights.

If you would like to return anything you have bought from Wholesale LED Lights, you have 14 days from the date of delivery to notify us. Should you with to, you then have a further 14 days to send the item back to us. You will then receive either a refund or an exchange.

This applies to all items unless otherwise stated, for example, any custom-made items (such as cut to length LED Strip Lights, or LED Door Signs) are excluded from our 14 day returns policy.

If an item has been modified, attempted to have been repaired or otherwise tampered with, Wholesale LED Lights are not obliged to offer a refund or exchange.

Please read through our full returns policy for more details

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