LED lights

[misterfish]

We've got quite a lot of cfl gu10 lights with Megaman lamps. Although they work fine they do take a real age to get to full brightness and start with a really low light level that makes working in the kitchen difficult until they wave warmed up. I've been looking to replace these with led versions but find it confusing and reviews question actual longevity.

So has anybody recommendations for good value, seemingly reliable, high light output (proper replacement for 50w), warmiish white, wide beam lamps - ideally supplier and model?

Misterfish

 

[AndyT]

We've got quite a lot of cfl gu10 lights with Megaman lamps. Although they work fine they do take a real age to get to full brightness and start with a really low light level that makes working in the kitchen difficult until they wave warmed up. I've been looking to replace these with led versions but find it confusing and reviews question actual longevity.

So has anybody recommendations for good value, seemingly reliable, high light output (proper replacement for 50w), warmiish white, wide beam lamps - ideally supplier and model?

Misterfish

I bought these, from this supplier. I did not need delivery so they were a bit cheaper but I think £10 delivered is fair.

http://electricsandlighting.co.uk/gu10-led/21938-3w-equal-50w-smd-gu10-led-320-lumens-50000-hrs.html

 

[MMUK]

Personally I always advise customers against using the GU10 LED lamps. I advise that they look at using the 12v versions (MR11 or MR16) with a transformer. The low voltage versions last longer

 

[Phil Pascoe]

I'd have gone with them, but I'm using existing fittings and wiring.

 

[MMUK]

Ah, so they're not in recessed spots then but a surface mounted fitting?

 

[AndyT]

In case it helps anyone, the sort I linked to above are the same external dimensions as GU10s. I have some in a spotlight fitting in the kitchen but have also used them in ceiling mounted flush fittings where they were a straight swap for 12v halogens (having removed the transformer and changed the bulb holders). They fitted OK with the wire expanding clips against the front surface.

 

[Phil Pascoe]

Ah, so they're not in recessed spots then but a surface mounted fitting?

Both.
I'm reluctant to start altering wiring, as it's an old house but new to me - I have no idea where anything comes from or goes.

 

[Phil Pascoe]

I changed another two in that room. It is unusual in that the lights will mostly be on all day, but I've just had an electric bill and I've worked it out properly - the difference between the two types of lamp is £315 a year. The lamps cost me £44, and the next lot will be cheaper - bought on line. :lol:
It's even more than that - I forgot the 5% vat!

 

[Yetty]

My small kitchen has pair of ceiling light fittings, each holding 6 x GU10 50w type bulbs. Initially I fitted new Megaman fluorescent type bulbs. They worked well when new, but became less bright and megaslow to warm up. Needed junking after about 4 yrs use.

Since, for about 2 years now, I've used GU10 based LED bulbs. Type/specs: GU10, 6W, 60 x LED 3528 SMD type, warm white, 450 Lumens, 120 degree output. Bought from the bay. Very impressed.

With the white painted walls, the room is now like an operating theatre! The light level is intense and the bulbs are angled to reflect off the walls & ceiling to reduce glare. Hope that helps.

 

[MIGNAL]

I've gone LED light crazy! This time 3 Duracell candle type 4 Watt and a normal 6 watt. Again, couldn't resist. They were on the cheapo shelf at Asda for £3.50 each. Bad news is that I need to change two light fittings or buy adapters. I've gone from consuming 190 Watts with 5 lights to 24 watts with the same number of lights.
OK. I've done my bit to reduce global warming, although I've had to turn the heating up a mere touch to compensate for the drop in heat from 190 Watts worth of glowing bulbs. :shock:

 

[Jack (W)]

Inspired by this topic I’ve just bought an Energenie “5W MR16 12v Energy saving LED spotlight” to replace an MR16 12v 50W halogen bulb.

It seems obvious (to me at least) that as I’m replacing a 50W bulb with a 5W bulb, the LED bulb will use only 10% of the energy used by the Halogen. In other words, in respect solely of the bulbs themselves, the LED bulb will provide a 90% energy saving.

However the LED bulb packaging states:

“50W Halogen bulb retrofit - Rating 5W - up to 80% energy saving”.

Now bearing in mind that this is a comparison solely between a Halogen bulb and an LED bulb, I seem to have lost at least 10% of my energy saving somewhere!

I’d like to think it has gone to a good home, so if anybody noticed their workshop was just a teeny-weeny bit warmer today a ‘Thumbs Up’ would bring a little glow into mine.

Jack (W)

 

[RossJarvis]

I think it's probably due to a statistician (I.e liar) getting involved. I've never quite worked out how they convert the power used (Watts) to the light output (lumens/glow-worms/candles) and have a paranoid idea that it's just one of many ways that rich f*****s use to remove money from us to them.

I've recently come to the conclusion that too many accountants have got involved in the process of life and this is not a good thing. They seem to have totally supplanted engineers or anyone else with half a brain. When Adolf Eichmann was caught, the phrase "banality of evil" was formed. Accountants are the most banal of people and seem to have the most power in our society. Therefore evil is now in control and misleads us all, particularly through financial statistics.

I'm sorry if any of the members here are accountants, but you now know you need to repent, if you haven't realised this already please discuss with me via pm, failing this contact Jacob if you feel the need to convert to something akin to socialism/communism. I'm more in the line of Anarcho/Co-operativists (though not related to the modern version of the Co-operativist Society who are now Capitalist-theiving-b******s).

 

[MMUK]

Inspired by this topic I’ve just bought an Energenie “5W MR16 12v Energy saving LED spotlight” to replace an MR16 12v 50W halogen bulb.

It seems obvious (to me at least) that as I’m replacing a 50W bulb with a 5W bulb, the LED bulb will use only 10% of the energy used by the Halogen. In other words, in respect solely of the bulbs themselves, the LED bulb will provide a 90% energy saving.

However the LED bulb packaging states:

“50W Halogen bulb retrofit - Rating 5W - up to 80% energy saving”.

Now bearing in mind that this is a comparison solely between a Halogen bulb and an LED bulb, I seem to have lost at least 10% of my energy saving somewhere!

I’d like to think it has gone to a good home, so if anybody noticed their workshop was just a teeny-weeny bit warmer today a ‘Thumbs Up’ would bring a little glow into mine.

Jack (W)

You have to factor in a certain amount of energy loss though the resistors as heat (not much but still a loss). Also, LED power can vary slightly. I think the 80% claim is a little on the conservative side though.

 

[misterfish]

I was about to buy some gu10 led bulbs for our kitchen following my question earlier in the thread when I remembered that the downlighters are specific 'low energy' versions and the lamps are longer than standard GU10 (75mm). as we didnt want replacement lamps recessed in the fittings I had to refine my search to long body versions and ended up with 5.8w versions from Light Rabbit and I am impressed. They have the surface mounted leds and give a 120 degree spread of light and way better than the old cfl lamps they replaced.

Misterfish

 

[tekno.mage]

I've recently come to the conclusion that too many accountants have got involved in the process of life and this is not a good thing. They seem to have totally supplanted engineers or anyone else with half a brain. When Adolf Eichmann was caught, the phrase "banality of evil" was formed. Accountants are the most banal of people and seem to have the most power in our society. Therefore evil is now in control and misleads us all, particularly through financial statistics.

+1 Agree totally.

I'd also question how they measure the light output. I've been using LED GU10 type bulbs for a while now and from pure observation of the light output, I'd say that a 5W LED type bulb is more the equivalent of a 20W halogen - it's nothiong like as bright as a 50W halogen. LED bulbs do have the advantage of not being anything like as hot in use as the halogens and they *should* last considerably longer. Most of the LED ones I have also interfere with FM radio :-( Obviously radio interference from electrical devices is something that is no longer tested for as I find many modern wall warts and battery chargers also do this :-( It's down to poorly designed cheap Chinese switch mode power supplies, I know. :-(

 

[MMUK]

I've recently come to the conclusion that too many accountants have got involved in the process of life and this is not a good thing. They seem to have totally supplanted engineers or anyone else with half a brain. When Adolf Eichmann was caught, the phrase "banality of evil" was formed. Accountants are the most banal of people and seem to have the most power in our society. Therefore evil is now in control and misleads us all, particularly through financial statistics.

I take it you were watching something on TV with Angela Merkel at the time you wrote this? :lol:

 

[joethedrummer]

Hey I saw that an" thought she was just seducing Pres Obanana

 

[Phil Pascoe]

I have a three bedroom house, and with every light in the house on (including two aquaria and five compact fluorescents that I couldn't justify upgrading) the power consumption is 185w. Can't be bad. :lol:
:ho2 Merry Xmas, everyone! :ho2

 

[Ring]

http://www.ledison-led-lights.co.uk/p/L ... +12W/8.htm
I ended up ordering these to replace my florecents well impressed with the fittings and the tubes great light out of them . just need to get some mr16 bulbs then that's my kitchen sorted.
Jim

 

[RogerS]

Anyone read the letter in the paper about a guy who replaced his halogen lamps with LEDs only to find that he lost his DAB signal whenever they were switched on!