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GU10 LED Bulbs

GU10 Bulb FAQs

What is a GU10 Bulb?

A GU10 bulb is a type of bulb that’s commonly used in recessed downlights and spotlights. It features two lugged base pins and has tiny glass reflectors within the bulb that are used to direct and intensify the light. GU10 bulbs come in two main types: halogen and LED. GU10 LED bulbs are the most common as they are more energy efficient.

How Do You Remove and Change a GU10 Bulb?

You can remove and change a GU10 bulb with your hands in four simple steps.

Step 1 - Turn the Light Switch Off Be sure to turn off the switch before changing your bulb to prevent electrocution. You should also wait for the light bulb to cool down, especially if it’s a GU10 halogen bulb which can get hot.

Step 2 - Wear Heat-Proof Gloves (Optional) Although waiting for the bulb to cool down should be enough, it’s still a good idea to wear heat-proof gloves as they can also protect against electrical damage.

Step 3 - Remove the Plastic Ring (if Applicable) Some GU10 light bulbs will be lined with a ring of metal which will need to be removed before the bulb. You can do this by simply squeezing the two small prongs together on the ring, which should cause the ring to fall off.

Step 4 - Remove the Current Bulb Push against the current GU10 bulb with your thumbs and rotate it 90 degrees. Then, gently wriggle it until it loosens up and comes out.

Step 5 - Put in Your New GU10 bulb After safely removing the current GU10 bulb, it’s time to install your new one. Add gentle pressure to the bulb with your thumbs until the bulb pops into the socket. Then rotate it clockwise 90 degrees to secure it in place. You can then switch on the light switch to test if the light is functioning correctly.

Can I Replace GU10 Halogen Bulbs with LEDs?

Yes, you can generally replace most GU10 halogen bulbs with a GU10 LED as electrical current conversions happen at the bulb. However, some bulb types don’t do this and may require drivers to convert the AC current to DC. If in doubt, speak to a qualified electrician.

Are GU10 Bulbs Dimmable?

Yes, GU10 LED bulbs are available in a dimmable format. You can see plenty of options on this page - just look for the word dimmable in the product description!

Are All GU10 Bulbs the Same Size?

There’s no official GU10 standard bulb size. Most have a 53mm length and 50mm diameter. However, the size of the bulb can depend on its bulb type, which comes in four variations: PAR 16 - the most standard GU10 bulb with a 50-51mm diameter and 50-55mm length PAR 36 - 111mm diameter and 58-66m length. PAR 20 - 63.5mm diameter and 64-89mm length. PAR 28 - 120-121mm diameter and 134-136mm length. Most of these designs are made for specialist functions. Generally, you’ll likely need the standard PAR 16. Be sure to read the product description to get the right GU10 size you need.

Are GU10 Bulbs Energy Efficient?

It depends on the type of GU10 bulb you get. GU10 LED bulbs are up to 90% more efficient than halogen GU10 bulbs. LEDs also increase the lifespan to 50,000 hours.

Do GU10 Bulbs Need a Transformer?

No, GU10 bulbs don’t need a transformer. They can be directly installed into existing fixtures that accept the bulb type. But you may need a transformer if the fixture doesn’t accept LED bulbs.

Are GU10 and MR16 the Same Size?

No, GU10 and MR16 bulbs are different sizes. GU10 bulbs are slightly taller and have a ready-to-plug-in base. MR16s are bulkier and have a different socket.

Are GU10 Bulbs LED or Halogen?

There are two types of GU10 bulbs - LED and halogen. All modern GU10 bulbs that you buy will be LED. Halogen bulbs were phased out in Europe due to high CO2 emissions. The GU10 LED bulbs are far more energy efficient - producing five times less energy than the halogen variation.

Do GU10 Bulbs Get Hot?

Although GU10 bulbs can be hot to the touch, they generally keep a low temperature and are unlikely to burn or pose a fire risk.

Do GU10 Bulbs Need a Driver?

No, GU10 bulbs are mains voltage LED light bulbs and have a built-in driver. Other bulbs, like the MR16, require an external 12v driver.

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    Ledvance 957909 PPAR1635827D Parathom LED Reflector Lamp 3.1W 230lm 2700K 565cd GU10

    Osram PARATHOM LED Reflector Lamp PAR16 with retrofit pin base is ideal for economical spotlighting. Features with very low lifetime of up to 25000...

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    Ledvance 957923 PPAR1635840D Lamp GU10 LED 36Degree 3.1W 230lm 4000K Par16 35 Dimmable

    Osram PARATHOM LED Reflector Lamp with excellent dimmer compatibility, very long lifespan of up to 25000 hours and low energy consumption. High col...

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    Ledvance 958029 PPAR1680840D Parathom LED Reflector Lamp 7.2W 575lm 4000K 1439cd GU10

    Osram PARATHOM LED Reflector Lamp PAR16 with retrofit pin base is ideal for economical spotlighting. Features with very low lifetime of up to 25000...

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    Newlec MLEDV5WG102736D Pro 5.3W LED GU10 Spotlight Lamp Bulb 240V 2700K 36° Dimmable Warm White

    Colour: Warm White • Size: 55x50mm • Output: 5.3W • Colour Temperature: 2700K • Voltage: 240V

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    Newlec NLGU1035W840D 3.5W LED Spotlight Lamp Bulb [35W Equivalent] GU10 Dimmable 240V 40° 3000K 260lm Cool White

    The new LED GU10 range provides energy efficient direct replacements for the 35W and 50W standard tungsten halogen lamps. • Colour: Cool White • ...

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    Newlec NLLED/3.5/GU10/827 Lamp GU10 LED 3.5W 2700K 250lm 240V 56x50mm

    The LED GU10 range provides energy efficient direct replacements for the 35W and 50W standard tungsten halogen lamps. Available in Warm White suita...

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    Philips 929001348902 MAS LED Spotlight VLE D 4.9-50W GU10 930 36D

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    Philips 929001364202 Corepro LED GU10 5W 50W 830 Dimmable

    Equivalent to a 50W halogen GU10 bulb, the COREPRO LED GU10 5W 50W 830 DIMMABLE , is an easy 1:1 replacement for LED and Halogen lamps. Dimmable on...

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    Signify 929002068299 Corepro LED GU10 3W/4W 35W 830 Dimmable

    Equivalent to a 35w halogen GU10, the COREPRO LED GU10 3W/4W 35W 830 DIMMABLE, is an easy 1:1 replacement for LED and Halogen lamps. Dimmable on an...

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    Signify 929002495999 Corepro LED GU10 4W/5W 50W 827 Dimmable

    Equivalent to a 50w halogen GU10, the COREPRO LED GU10 4W/5W 50W 827 DIMMABLE, is an easy 1:1 replacement for LED and Halogen lamps. Dimmable on an...

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    Ledvance PPAR1635363W840 Parathom LED Lamp GU10 3W 4000K 50 x 58mm White

    A PAR16 Reflector LED Lamp with retrofit pin base, non-dimmable, suitable for shop, hospitality, museum, art gallery, residential interior, downlig...

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    Ledvance PPAR1650365W827 Parathom LED Lamp GU10 5W 2700K 50 x 58mm White

    A PAR16 Reflector LED Lamp with retrofit pin base, non-dimmable, suitable for spotlighting for accent, display cabinet and shop window, retail outl...

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    Robus R50GU10D-CW Emerald GU10 LED Lamp 4.9W 4000K IP20 50 x 55mm Cool White

    R50GU10D-CW is an EMERALD LED Lamp, dimmable, made up of die cast aluminium, plastic coated housing and polycarbonate lens. It is suitable for use ...

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    Crompton Lamps 9967 LED AR111 12.5W 4000K GU10 Light Bulb

    Direct Retrofit

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    Ledvance 957954 PPAR1650827D Lamp LED GU10 36DEG 4.6W 350LM 2700K PAR16 50 Dimmable

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    Ledvance 957978 PPAR1650840D Parathom 4.6W GU10 Dimmable LED Bulb 4000K Cool White

    36° beam angle • 750 cd • 50W replacement

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    Ledvance 958005 PPAR1680827D PARATHOM LED Reflector Lamp 7.2W 575lm 2700K 1439cd GU10

    Osram PARATHOM LED Reflector Lamp PAR16 with retrofit pin base is ideal for economical spotlighting. Features with very low lifetime of up to 25000...

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    Ledvance 958104 PPAR1650827 Parathom PAR16 50 36° 4.3W 2700K GU10

    LED alternative to high voltage halogen lamps • High color consistency: = 6 SDCM • Base: GU10 • Base: GU10 • Lamp made of glass • Good quality...

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    Ledvance PPAR16D35363W827 LED GU10 35 36 2700K Dimmable

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    Ledvance PPAR16D50365.5W827 Parathom LED Lamp GU10 5.5W 2700K 50 x 58mm White

    PAR16 Reflector LED Lamp with retrofit pin base, dimmable, suitable for spotlighting for accent, display cabinet and shop window, retail outlet and...

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    Ledvance PPAR16D50365.5W840 Lamp GU10 LED Dimmable 5.5W 4000K 50 x 58mm White

    A PAR16 Reflector LED GU10 Lamp with retrofit pin base, dimmable, suitable for shop, hospitality, museum, art gallery, residential interior, downli...

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    Ledvance SPAR1650367WBLI Lamp GU10 PAR16 50 36DEG Blister Pack 7W 385LM 100-240V COLO

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    Newlec NLGU1043W840D 4.3W LED Spotlight Lamp Bulb [50W Equivalent] GU10 Dimmable 240V 40° 3000K 355lm Cool White

    The new LED GU10 range provides energy efficient direct replacements for the 35W and 50W standard tungsten halogen lamps. • Colour: Cool White • ...

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    Newlec NLGU1050F Lamp - 240V 50W (GU10) Dimmable

    Integral safety fuse, Dimmable, Excellent colour rendering, light close to natural daylight (100% CRI), Universal burning, UV stop. • Length: 57mm...

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GU10 Bulb FAQs

What is a GU10 Bulb?

A GU10 bulb is a type of bulb that’s commonly used in recessed downlights and spotlights. It features two lugged base pins and has tiny glass reflectors within the bulb that are used to direct and intensify the light. GU10 bulbs come in two main types: halogen and LED. GU10 LED bulbs are the most common as they are more energy efficient.

How Do You Remove and Change a GU10 Bulb?

You can remove and change a GU10 bulb with your hands in four simple steps.

Step 1 - Turn the Light Switch Off Be sure to turn off the switch before changing your bulb to prevent electrocution. You should also wait for the light bulb to cool down, especially if it’s a GU10 halogen bulb which can get hot.

Step 2 - Wear Heat-Proof Gloves (Optional) Although waiting for the bulb to cool down should be enough, it’s still a good idea to wear heat-proof gloves as they can also protect against electrical damage.

Step 3 - Remove the Plastic Ring (if Applicable) Some GU10 light bulbs will be lined with a ring of metal which will need to be removed before the bulb. You can do this by simply squeezing the two small prongs together on the ring, which should cause the ring to fall off.

Step 4 - Remove the Current Bulb Push against the current GU10 bulb with your thumbs and rotate it 90 degrees. Then, gently wriggle it until it loosens up and comes out.

Step 5 - Put in Your New GU10 bulb After safely removing the current GU10 bulb, it’s time to install your new one. Add gentle pressure to the bulb with your thumbs until the bulb pops into the socket. Then rotate it clockwise 90 degrees to secure it in place. You can then switch on the light switch to test if the light is functioning correctly.

Can I Replace GU10 Halogen Bulbs with LEDs?

Yes, you can generally replace most GU10 halogen bulbs with a GU10 LED as electrical current conversions happen at the bulb. However, some bulb types don’t do this and may require drivers to convert the AC current to DC. If in doubt, speak to a qualified electrician.

Are GU10 Bulbs Dimmable?

Yes, GU10 LED bulbs are available in a dimmable format. You can see plenty of options on this page - just look for the word dimmable in the product description!

Are All GU10 Bulbs the Same Size?

There’s no official GU10 standard bulb size. Most have a 53mm length and 50mm diameter. However, the size of the bulb can depend on its bulb type, which comes in four variations: PAR 16 - the most standard GU10 bulb with a 50-51mm diameter and 50-55mm length PAR 36 - 111mm diameter and 58-66m length. PAR 20 - 63.5mm diameter and 64-89mm length. PAR 28 - 120-121mm diameter and 134-136mm length. Most of these designs are made for specialist functions. Generally, you’ll likely need the standard PAR 16. Be sure to read the product description to get the right GU10 size you need.

Are GU10 Bulbs Energy Efficient?

It depends on the type of GU10 bulb you get. GU10 LED bulbs are up to 90% more efficient than halogen GU10 bulbs. LEDs also increase the lifespan to 50,000 hours.

Do GU10 Bulbs Need a Transformer?

No, GU10 bulbs don’t need a transformer. They can be directly installed into existing fixtures that accept the bulb type. But you may need a transformer if the fixture doesn’t accept LED bulbs.

Are GU10 and MR16 the Same Size?

No, GU10 and MR16 bulbs are different sizes. GU10 bulbs are slightly taller and have a ready-to-plug-in base. MR16s are bulkier and have a different socket.

Are GU10 Bulbs LED or Halogen?

There are two types of GU10 bulbs - LED and halogen. All modern GU10 bulbs that you buy will be LED. Halogen bulbs were phased out in Europe due to high CO2 emissions. The GU10 LED bulbs are far more energy efficient - producing five times less energy than the halogen variation.

Do GU10 Bulbs Get Hot?

Although GU10 bulbs can be hot to the touch, they generally keep a low temperature and are unlikely to burn or pose a fire risk.

Do GU10 Bulbs Need a Driver?

No, GU10 bulbs are mains voltage LED light bulbs and have a built-in driver. Other bulbs, like the MR16, require an external 12v driver.

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