GU10
3 x 1 Watt, 3 x 2 Watt, 4 x 1 Watt, 5 Watt Dimmable & 7 Watt GU10 LED Bulbs
GU10 LED Bulbs Range
LED Bulbs
5 watt (to replace 60 watt conventional bulbs) & Supplied in 8w (to replace 100w bulbs)
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LED Fittings
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Economical and Environmentally Friendly GU10 LED Bulbs
There area a full range of GU10 LED Bulbs in stock.
GU10 LED Bulbs (Also known as PAR 16)
There are two types of spotlight bulb commonly in use in the UK – the MR16 and the GU10. Both are 50mm compact bulbs in various power ratings, with 35 watt and 50 watt being the most popular. The main differences are that the MR16 is a low voltage device, working on 12 volts AC, via a transformer, and has a twin-in, push-in connector, and so relies on some form of retaining device to hold it in place. The GU10 works directly from mains ( 240v AC) power and so needs no form of transformer. It also uses a more positive push-and-twist locking system via two “T” shaped pins, and so can fit without any other form of retainer, although the same fitting is often used (with different connectors) for both lamps.
The oldest and cheapest technology for these bulbs is halogen. When it was introduced in the 1960′s it gave previously unseen levels of performance and has become the cheapest way to produce this much light, but more than 80% (at best) of the large amount of energy it consumes is consumed producing heat, not light, which is why we have halogen cooking hobs. This heat can present safety problems and shortens the life so that as little as 500 hours of life is not unusual, and 1500 hours is considered unexceptional.
Two other technologies have become available in recent years. CCFL, or cold compact fluorescent lighting lamps use less energy, run cooler and last longer, but they need time to reach their full output, contain highly toxic materials and struggle to give enough light to justify swapping from halogen. They do, however, give a relatively cheap way to use the fittings and reduce the energy consumption. LED versions will ultimately be the norm as they have a phenomenally long lifetime, use a fraction of the power for any given light output, run cool, and can be any colour, shade of white, or even multi-colour and dimmable. Prices are coming down, performance indicators are going up, and the fit-and-forget aspect means that even with current prices, the return on investment is usually 700% over the life of the LED bulb.
When looking to upgrade, it is worth noting that there are many differences in LED bulbs. The most important one is that cheap bulbs usually contain cheap components, and the performance can degrade rapidly, with loss of light output and colour change amongst the symptoms. A common trick of the trade is to mask low light output by making the light beam angle quite narrow. This then looks quite bright, but only over a small area, creating a shadowy effect. When you are ordering these bulbs, you need to compare not only price, but length of guarantee, light output in lux or lumens, the light beam angle ( 30 degrees is a pencil-thin beam and 70 degrees is wide angle or flood), and the colour of the light. Unless the bulb is for a coloured light, the colour of white light may be described as warm white, daylight white or cool white. Translated into everyday English, warm white is a bit yellow, like a traditional bulb and gives a cosy effect. This would technically be known as 3000 Kelvin – 3500 Kelvin. Daylight white is more like the latest fluorescent tubes in colour and measures 4000 to 4500 on the Kelvin scale, and cool white is sharper and more clinical, as you would expect to see in a workplace. It measures 6000K to 7000K, and can look a little blue at times. There is no right and wrong, and we all have different eyes and see things differently, but be sure to choose the right one for you. When choosing the power of LED bulbs, if the power is only quoted in watts, (which is better for describing heat than light), then between 10% and 20% of the wattage of a halogen equivalent will be about right, and a good one will last for 50,000 hours.
Why upgrade to LED lighting from conventional lighting?
1.LED lighting will out-last conventional lighting by an average factor of 10 – 1. This can be increased when the conventional lighting is in an area where a) it is frequently switched on/off, b) where there are power surges/dips/cuts, c) where there are regular vibrations/impacts ( doors banging etc.).
2. LED lighting will give a 60% to 70% saving on power consumption.
3. LED lighting will not radiate unwanted infra red or ultra violet.
4. LED lighting will not put regular amounts of toxic waste into landfill.
5. LED lighting will not generate unwanted heat, and thereby reduces the load on air conditioning systems, and improves living and working conditions.
6. LED lighting can be dimmed, and almost any colour can be created, and even variable colours, if required.
7. LED lighting is compact.
8. LED lighting needs extremely slim wiring.
9. LED Lighting uses far less energy during manufacture and uses no toxic materials.
10. LED lighting offers a freedom of design previously unavailable.
11. LED lighting does not flicker or need time to reach full output.
12. LED lighting does the job better and can be truly beautiful.
Energy & Cost Comparisons Per Blub
60 Watt bayonet lightbulb VS 5 Watt LED Equivalent
| 60 Watt bayonet lightbulb | 5 Watt LED Equivalent | ||
|---|---|---|---|
| Incandescent bulb | £0. 98 | Bulb | £11. 90 |
| Energy cost over 5 years | £83. 30 | Energy cost over 5 years | £ 6. 94 |
| Bulb replacements | £12. 60 | Bulb replacements | £ NIL |
| Total ( excluding labour) | £96. 88 | Total (excluding labour) | £ 18. 84 |
| Difference £78. 04 x No of bulbs. | |||
50 Watt GU10/MR16 spotlights VS 5 Watt LED Equivalent
| 50 Watt GU10/MR16 spotlights | 5 Watt LED Equivalent | ||
|---|---|---|---|
| Halogen spotlight bulb | £3. 20 | Bulb | £12. 00 |
| Energy cost over 5 years | £69. 42 | Energy cost over 5 years | £ 6. 94 |
| Bulb replacements | £20. 48 | Bulb replacements | £ NIL |
| Total ( excluding labour) | £93. 10 | Total (excluding labour) | £18.94 |
| Difference £74. 16 x No of bulbs. | |||
Fluorescent tube fittings. (Domestic use) VS Green Logic Duo
| 4ft Twin tube fitting | Green Logic Duo | ||
|---|---|---|---|
| 4ft Twin tube fitting | £24.90 | 4ft Twin tube fitting | £94. 90 |
| Energy cost over 5 years | £99. 84 | Energy cost over 5 years | £44. 90 |
| Tube replacements | £15.60 | Tube replacements | £NIL |
| Starter replacements | £14.20 | Starter replacements | £NIL |
| Ballast replacements | £20.40 | Ballast replacements | £NIL |
| Total (excluding labour) | £174.94 | Total (excluding labour) | £139. 98 |
| per fitting. | per fitting. | ||
Fluorescent tube fittings. (Commercial use) VS Green Logic Duo
| 4ft Twin tube fitting | Green Logic Duo | ||
|---|---|---|---|
| 4ft Twin tube fitting | £24.90 | 4ft Twin tube fitting | £94.90 |
| Energy cost over 5 years | £146.24 | Energy cost over 5 years | £44.90 |
| Tube replacements | £34.00 | Tube replacements | £NIL |
| Starter replacements | £26.20 | Starter replacements | £NIL |
| Ballast replacements | £32.40 | Ballast replacements | £NIL |
| Total (excluding labour) | £263.74 | Total (excluding labour) | £139. 98 |
| per fitting. | per fitting. | ||
