Possible to replace standard bulbs with LED?

Spit said:
Finally replaced all my 50w spot for 3w LED. 1050w down to 63w in the kitchen dining area. Should save a few Bob over the next few years. Give off a decent light:

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but those lights are not producing the true white colour ?

where can i get a true white colour light ?
 
TheBigCheese said:
Gah, just had a lightbulb explode when switched on and spray the whole room with glass, will take hours to clear up tomorrow!

Has anyone tried replacing normal bulbs with led? I would be wanting 100w equivalent but a quick search suggests that aren't really available and they are one directional
only... the tech seems a bit new still.

Anyone tried led for bayonet fitting?

Cheers.
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B&Q sell them.
 
I have a six-spotlight G9 fitting in my bedroom. The amount of lightbulbs I go through is a joke (and no, they're not the cheapest bulbs), so I've ordered 6 LED lights to see how they fare. 2 year warranty, 50 SMD (surface mounded diode), 260 lumen output... here's hoping.
 
Somnambulist said:
I have a six-spotlight G9 fitting in my bedroom. The amount of lightbulbs I go through is a joke (and no, they're not the cheapest bulbs), so I've ordered 6 LED lights to see how they fare. 2 year warranty, 50 SMD (surface mounded diode), 260 lumen output... here's hoping.
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You will find them much better. I was the same having to replace bulbs all the time. I have not replaced one LED yet. The LED bulbs produce no heat so they dont blow.
 
Spit said:
You will find them much better. I was the same having to replace bulbs all the time. I have not replaced one LED yet. The LED bulbs produce no heat so they dont blow.
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They arrived shortly after my post. Installed. Great success! They appear as bright as the G9s they replaced, albeit you can see the individual SMDs rather than a single light source, but I don't stare at the lights anyway. I'm pleased! I used a site that offered a 2 year warranty to err on the side of caution but as it stands I think these should last a long time. They're much bigger than a regular G9 and I may check in a few weeks to see if they're as securely attached but I don't see it as being a problem.

I'd post a pic but I'll get in trouble as you can see where I bought them from and OCUK have started doing LED bulbs themselves...
 
Are any of these GU10 LED replacements dimmable? I’ve got approx. 30 in the house that I’d like to swap out but they are all controlled by touch dimmers.
 
Nick1881 said:
Yes but they are much more expensive, all the dimmable ones I have seen were £30. :eek:
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Your not looking hard enough!

Just finished second fixings in my rents new conservatory build and installed 12 x Gu10 downlighters (Halogen = 600W :eek: )

Did a fair bit of research and bought some Rotundity CREE 9W (5.5-6.5W Load) these are dimmable and have a MTBF of 100,000 hours! Thats nearly 11.5 years 24/7 @ 100% :eek:

I paid £8.50 each

Sorry about the poor quality phone pic!
zSQm2.jpg
 
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I've got 25 GU10 halogens in my house, been looking around for LEDs to replace them (most on dimmer switches too.)

Aren't even the 5050 SMD high wattage bulbs significantly dimmer than 50w GU10s? I thought a standard 50w halogen was about 600lm, but I can't find anything online going much beyond 400, even those marked as "50w replacements"

I'd also like some that have the same spread, but many are 60degrees compared to, what is it, 40degrees for halogen?
 
So, is there anything different aboult this bulb? It's way more expensive than other led bulbs.

http://www.bbc.co.uk/news/technology-17788178
A prize-winning light bulb that lasts for 20 years is going on sale in the US on Sunday - also known as Earth Day.

Made by Dutch electronics giant Philips, the bulb swaps filaments for light-emitting diodes to provide illumination.

Using LEDs endows the light with a long life and a hefty price tag. The first versions are set to cost $60 (£37).
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I've replaced all the bulbs in my car with led's, no idea about the domestic side of things but I would assume they make LED varients of standard bulbs. Because those stupid energy saving bulbs are ****, you put the light on, do what you have to do, leave the room before the room is even light lol
 
Interesting Glaucus. I keep getting the impression that LED bulbs aren't quite there yet from what I read... reading between the lines of that BBC article it seems to say that the current ones aren't there yet...
 
No - the technology is nowhere near perfected yet.

The main problem is the "estimated" life. As usual - all the manufacturers are stating wild expected lifetimes of 15,20 even 25 years...which in my eyes is just ridiculous.

I have over a dozen LED bulbs in the house - which had claimed lifetimes of 15 years. So far I have replaced 3 of them in the last 3 years. The main reason not the actual LED failing - but the driver circuitry burning out - or failing. Essentially the 240V driving the bulbs has to be stepped down to something the diode elements can use.

If you read most advertisments for LED bulbs, they will usually say "Up To 35,000 hours use" - which can mean anything from the bulb failing after a few weeks, or a few years.

One of the reasons the companies (even Philips) aren't willing to offer a 15 year guarentee on them ;)
 
Well, I can appreciate that part of it Helospherez, but the light itself doesn't seem to be bright enough, warm enough or in a wide enough radius from reading other threads...

At least there seems to be a strong appetite for them.. that's only going to encourage the technology to move along.
 
They don't exist - it's basic Physics.

Any atom/element/chemical that is heated to produce light will eventually degrade - as will any containment vacuum / sealed unit..... even in the case of LED's - the actual sealed Diode will eventually have gases attacking it and changing it's chemical structure. Even glass "lightbulbs" let atoms through - and the filaments evaporate in the argon containment.

Even in a perfect vacuum vessel (which is a near impossibilty) you get "outgassing". Eg. if you had a 5 inch thick steel walled jar and pumped it down to a perfect vacuum with a filament illuminated inside - there would still be gasses coming into it (and attacking the filament or changing it's properties to something that will degrade) from the alloy walls.

http://www.vacuumlab.com/Articles/VacLab36.pdf
 
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