15.9.2013

Although it is listed as a replacement for 50w halogen GU10 bulb it is less bright than the 6w versions of the bulbs that I've tried in this range from Philips. It has more of a yellowish tint than the other 50w replacements due to its lower colour temperature (see notes below) but has a decent spread of light. This bulb would be a good choice if you were looking for a brighter light but still want a cosier feel to it as some of the brighter bulbs can have a clinical tone to the light. This is the only bulb that I tested which had a white housing - all of the others were silver.This Philips range has a massive choice of bulbs with just small differences between models which means that it's possible to fine tune your lighting to suit most environments.I've been lucky enough to have eight of them to try together, so have tried them all in one room at the same time (my kitchen ceiling has eight GU10 fitments). I've also used them in other rooms throughout the house in various combinations where I have fewer fittings so I have been able to compare the light that they provide and judge them accordingly. The Philips website has pages and pages of information on these bulbs if you want even more detail. They even have lighting `apps' suitable for iOS and Android, and online courses for those who want to learn more about LED lighting.For a simplified idea of what the different numbers mean when choosing a LED bulb you should consider this:The `colour' of the light is expressed in terms of temperature, and in this range varies from 2700k (yellower light, similar to a traditional bulb) through to 4000k (a bluish light which is similar to that from fluorescent lighting). Generally speaking a yellow light can look cosier in a room but isn't as good for activities such as reading or sewing, and a blue light is better for activities but can make it look clinical.The brightness or intensity of the light is dependent on its power rating which in this range is 4w, 5w or 6w, and it is also shown in its equivalent value for the halogen bulbs they are typically used to replace (35w, 50w etc); the higher the power the brighter the light.The shape of the light projected from the bulb is given as the angular dispersion it has by number of degrees (25 degrees etc). This range had 25D, 36D and 40D with the higher number having a wider light dispersion and the lower number indicating a narrower cone of light from the bulb. In practice none of these bulbs have a clear line where there is darkness beyond that cone of light, but the most concentrated areas of light are in that area. For example the 25D bulbs have their light more closely focussed directly in front of the bulb so they are very good for concentrating that light when you want to see objects very clearly. The 40D bulbs have their light more widely dispersed so they're better for lighting wider areas.Below is a list of the other models that I have tried and what I thought of them.

16.9.2013

These Philips lightbulbs are much sturdier than the cheapo Halogen bulbs I've been buying. I've been getting cheapo ones because they keep blowing - that's the problem with halogen bulbs in a kitchen where they can easily get droplets on them which aren't good for the bulb. LED bulbs don't get hot so they aren't prone to self destructing because of a smear across the glass. I've used many halogen bulbs were the actual glass has a sharp rim which makes them tricky/dangerous to remove and install. These however are well made and are easily installed (press and twist).My light has the bulbs exposed as only the base of the bulb sits in a recess,

12.8.2013

I have steadily been replacing conventional lighting in my house with variousenergy saving lamps. Over the years the technology has improved and the priceshave continued to fall. I have a kitchen with 16 GU10 spot lights and have purchasedseveral makes over the years, often at great expense.The one down-side of my experience with LED GU10 lamps is I've had several ofthem fail (both cheap and expensive ones). I have sometimes managed to obtaina replacement from the vendor, but it really cheeses me off when the lamp expiresjust after the guarantee runs out.This lamp is rated to last ten years; I hope it does. I can't find out how long theseare guaranteed for,

26.7.2013

Now if it means not changing a light bulb for a while it sounds like trying to me.Where we live we do tend to have lots of power cuts so if we purchased all LEDs and they tripped well that would be an awful lot of money wasted, so always a little of wary. Having some to try courtesy of the Vine Programme just wonderful. If only they did one that looked like a candle for the fitting over the stairs it would make life a lot easier for changing it (eight bulbs and expensive to run). Will look into the various shapes and styles now though as pleased with the LEDs using now in other fittings.These do seem expensive, well made yes, but at a low price ten pounds or thereabouts on offer expensive if needing a few to fit your fittings.

24.6.2013

This is the third LED replacement for a GU10 light that I have tried and it is the best yet.Although only 5 watts, the amount of light emitted is fully comparable with that of a 50 watt GU10 lamp. (Another LED replacement that I have and is satisfactory in terms of the amount of light emitted is 6 watt.)The 2700k value indicates that the light is 'warm white', and indeed it is. (The bigger the number, the whiter the light.)The angle at which light is directed out of the lamp unit is 36 degrees. That is similar to or the same as many standard GU10 lamps.The claimed average life is 20,000 hours, which is ten times that of a standard 50 watt GU10.20,000 hours is only half the specified average life of some other LED lamps - including some made by (or for?)

26.7.2013

This is a fantastic LED bulb which I whole heartedly recommend. Philips are undenieably the market leader, they and Toshiba are blazing the trail with LED technology.Traditional light bulbs are going the way of the dinosaur and it is clear LED technology is the way forward. However, the road to LED is not quite as simple as that. Anyone who has looked at moving to LED bulbs will now that the standards of quality vary wildly from the bulk poor quality ones to the premium ones costing in excess of thirty pounds each.The bulb itself feels very well made in hand. Once fitted I was very impressed with the result. Instant on (but not dimmable)

14.8.2013

The Mater LED spot MV LED bulb is a standard sized dimmable spotlight bulb that utilises LED technology for a much longer lasting and more energy efficient bulb.Indeed, the packaging claims that the bulbs save up to a whopping 90% on its energy costs compared with a run-of-the-mill '50W Essential Twistline' bulb (i.e. a standard halogen one).This badboy also offers an average of 20,000 hours of use. It runs at just 5W, but is certainly bright enough. Actually, it seems to be quite a bit brighter than your standard spotlight bulb - and it comes on straight away - unlike the energy saving ones which seem to take forever to illuminate fully.Personally I really like the brightness that this bulb offers.

17.9.2013

I have long been fed up of the cost of replacing the spotlights in my kitchen. I was even considering changing the light fitting so that I wouldn't have to keep replacing them! You can, then, imagine my joy at the idea of such a long-lasting bulb. Hoorah for a bulb that claims to last 20,000 hours. I have, of course, been unable to test the life length of the bulb, so instead I shall tell you other notable points.The bulb is packaged well, and the packaging is relatively easily removed. The spotlight goes into the fitting very easily, and at literally the flick of a switch the light is fully on. It does not gradually get up to maximum light, but simply comes on at full power.

16.6.2013

As a replacement for Halogen bulbs, Philips seem to be the best you can find (and I've tried loads). As a rule LED bulbs have all ways suffered from a very narrow beam, so only work as spot lighting and haven't been able to replace room downlighters. Philips seem to have solved that problem.Boasting a beam angle of 36 degrees it's actually a wider beam than a standard halogen bulb and appears to be slightly brighter than our 50w halogen bulbs (coupled with the fact it shouldn't dim with use).I've currently got this in a desk lamp and it's perfect. It did work well in the ceiling lights, although if I were being picky, I did think it had a very slight blue tint to it.

30.6.2013

This superb bulb is a perfect replacement for 50W halogen downlighters. The white surround to this bulb makes it suited more to white plastic fittings, but when it's up on the ceiling it's really hard to tell anyway.The light colour and brightness is very close to a 50W halogen. In fact I think it's slightly nicer, but near enough for anyone not to notice unless pointed out. It's therefore useful when mixing halogens and LEDs, for example when replacing halogens one by one as the bulb fails.The bulbs are very compact and no larger than a standard halogen GU10, another great development as sometimes LEDs can be much longer for the heat sink and therefore not fit some holders.

28.8.2013

I have a ceiling mounted light in my office that takes 3 bulbs of this specification.Using standard bulbs in the fitting is a complete chore as they frequently require replacing.This in itself is no easy task as the bulbs are the most inconvenient I have ever used as they often prove extremely stubborn to remove from the fitting and then the new bulbs are sometimes difficult to seat properly even when using the rubber sucker that was supplied with the light fitting.This bulb is a huge improvement.Owing to the high quality construction fitting is a breeze and if & when removal is required I am expecting a less arduous experience as it sits slightly proud of the fitting and does not generate the

5.10.2013

Both my wife and I used to work for Philips Lighting and know the extend they go to design and test their lighting products. They consider safety, ease of use and performance to specification as a minimum requirement, not a bonus. We no longer work for that company but I would be hard pushed to settle with less than a Philips Lighting product.We have moved into our new home recently which had almost 100 halogen spots in the ceilings around the house and thus are replacing them room by room to reduce our energy costs. These 5W replacements are superb! They fit our existing fittings perfectly and the lighting colour matches better than expected (we like and wanted warm white light).

26.9.2013

I have been researching energy saving lighting to replace old GU10's for a while, and have always been put off by the price. After reading reviews about the Corepro I decided to take the plunge and replace 14 of my most used bulbs. No regrets at all, my initial concerns that they would not equal the brightness of the halogen bulbs was quickly resolved. The light is a clean white light and brighter than the old bulbs. Most noticeable was the lack of heat that these new bulbs generate. Part of my kitchen is an open plan south facing conservatory and during the summer evenings the kitchen can still be uncomfortably hot especially once the additional heat of the old bulbs was added.

21.5.2013

I wasn't sure if this bulb would fit my lamp-holder (a 4-bulb affair) but it was as easy as wink to remove the old bulb and put this one into place. Switch on and the light is immediate, there's no waiting for warm-up. The bulb gives a warm, quite gentle light (I don't mean weak, I mean not blinding) ideal for dining rooms, sitting rooms and bedrooms. The information with the bulb tells me it saves considerably on electricity usage (up to 80%) and has a life of around 20,000 hours burning time. I shan't be making any notes but that sounds a lot of time to me.It's true, these bulbs are not cheap but I think they are excellent value because they save so much electricity and last so long.

25.7.2013

At it's current price in the Amazon catalogue (£11 07/13) this is a good buy. It produces a very good soft light that would make it suitable for uplighters or down-lighters where you want a softer light as opposed to a bright white (4000k). It feels well made and robust, in addition Philips is a good name in lighting. Will it last 20000 hours? Who knows? The lifetime rating is a best guestimate based on the extrapolation of lab results. However, if it did, it works out at around 50p a year plus the energy saving - compared to a mercury long life, which is either 9W or 11W for the equivalent incandescence.

Philips CorePro LEDspotMV 5-50W GU10 2700K 36D - Reviews

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