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Luceco LED GU5.3 MR16 5W Bulb - Neutral White

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Quoting product code: A41YB


About this product


  • 5W LED equivalent to 35W traditional bulb
  • 85.71% lower power consumption compared to a standard bulb
  • 370 lumen output

Product overview

• 5W LED equivalent to 35W traditional bulb
• 85.71% lower power consumption compared to a standard bulb
• 370 lumen output
• MR16 light fitting used in 12V spotlights
• Not for use in dimmers
• 15,000-hour lifespan
• 4,000k neutral white colour temperature, ideal for kitchens and bathrooms for a contemporary looking light
• 38-degree beam angle to give large illumination area
• Three-year warranty included on Luceco products for peace of mind (proof of purchase required)

Is this bulb suitable for what I need?
This bulb has an MR16 (GU5.3) fitting. These are used in 12V low voltage spotlights, which usually feature a circuit with a transformer, and sometimes a dimmer.

Providing a 38-degree beam angle, this bulb will give the same output as a halogen, in a natural, neutral white colour, this bulb is ideal for a more contemporary lighting effect, ideal for bathrooms and kitchens. It provides a clean, modern, slightly more blueish coloured white.

This is a non-dimmable bulb, and must be used in a non-dimmable circuit. If you install this bulb into a circuit which is dimmable it may cause issues, even if you do not intend to use the dimming function.

What are the benefits of LED over traditional bulbs in my home?
LED bulbs offer huge reductions in energy consumption compared to their traditional equivalent, lowering your electricity bill by up to 90 per cent while producing a very similar lighting effect. LED bulbs are much more efficient, which makes them cooler to the touch, and so are a much safer alternative for lamps which younger children may come into contact with.

LEDs last up to ten times longer than their halogen equivalent, and between four and 40 times longer than other traditional products, and they produce consistent light output throughout the entirety of their life. This means that you won’t have to replace your bulbs anywhere near as often as you would with traditional household bulbs.

LED bulbs do not contain a filament which could be damaged, making them an extremely stable light source. LED bulbs provide instant light with no warm up time or visible flicker, just 100 per cent light from the moment you switch it on. LED bulbs will fit into your existing fittings, and can be combined with all other types of household bulbs, allowing you to replace your bulbs one at a time, to suit you. This saves you having to replace every bulb at once.

What are the benefits of LED over traditional bulbs for the environment?
LED bulbs dramatically reduce carbon emissions due to them converting up to 80% of the energy used into light, making them a brilliant choice not just for your pocket, but for the environment too. LED bulbs contain no harmful chemicals, which makes them safer to use and allows them to be disposed of cheaply and safely with minimal environmental impact, compared to fluorescent fittings which require expensive safe disposal.


Wattage 5 W
Equivalent Wattage 35 W
Reduction in Energy Consumption 85.71%
Brightness 370 lumens
Efficacy 74
CRI =80
Lifespan 15,000 hours
Fitting type GU5.3
Colour Temperature 4000 kelvin
Colour Neutral White
Beam Angle 38 degrees
Dimmable No
Product width (at widest point) 50 mm
Product height (including fitting) 53 mm
Product height (excluding fitting) 43 mm
Voltage 220-240 V
Shade Type MR16
Warranty 3 Years (Proof of purchase required)
Package Contents
1x Luceco GU5.3 MR16 5W Bulb

What is the difference between a MR16 (GX5.3) fitting and a GU5.3 fitting? 

Asked by: Matty
MR16 (GU5.3) The MR16 has 2 sharp pins on the bottom of the bulb that are simply pushed into the fitting, which is why this kind of bulb is commonly referred to as a 'push fit'. This is a 12V lamp which requires a transformer and is quite a bit larger than the MR11. It measures 50mm across the face of the bulb. The 5.3 in GU5.3 means that there is a distance of 5.3mm between the two pins.
Answered by: darren cordon
Date published: 2017-03-28

Do these run on 12vac or 12vdc? If the run on 12vac do they have an internal bridge rectifier or do they run at half the output on AC?

Asked by: Steve
They are 12vdc.
Answered by: Dominic
Date published: 2016-10-30
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