Lightbulbs

[jamoor]

We have a load of GU10 bulbs in the kitchen, I was looking at buying these online, they seem to be £1 each or so, I have also noticed LED ones and things such as pro lite GU10

http://www.mygreenlighting.co.uk/replacement_bulbs...

Anyone here know much about these? Is it worth switching the lot to LEDs?

Will I be sitting in funny lighting colours/in the dark?

[sherman]

The LED ones in my experience go POP about 3 times as often as the normal ones.

[Big_Dog]

I have had customers bring back the LED jobs because they are sitting in the dark. LED is best for effect and colour as yet.They are getting brighter. Think £60 for a superbright 3w GU10 Still only about 220 lumens though.
They can be quite spectacular if you try to dim them too.
The low energy lamps are a bit ugly but do the trick I use a few myself. (The megaman ones, I buy them well) All the LE stuff takes a while to get a full head of steam up so bear that in mind. In the bathroom you could have wet socks. Somewhere you leave the lights on you will make a real saving.
In order to work out if they will be bright enough it may be helpful to bear in mind that the GU10 or other halogens are typically 20 lumens per watt.
6400k is a pretty cold colour and can be hard on the eyes long term.

HTH

[mcdjl]

There are some really bright LEDs around but they tend to be a bit too focused for room lighting (think fog lights on the car rather than main beam). Leave them a year or two then get some.

[bigdods]

Most LEDs are too dim to be of use. 3W and above versions are now appearing and are apparently as good as a 20/30W halogen but at ~ £40 a go I've not tried them yet.

I buy all my GU10's online, a google/ebay search normally gets them for 50p or so if you buy 20 at a time

[E36GUY]

The above is both correct and incorrect. There ARE LEDs that can do the job, you just need to know what to look out for and what to avoid. Anything 'bulb' like is to be avoided but you can definitely light a home now using modern LED.

I posted a lot of information in this thread

http://www.pistonheads.com/gassing/topic.asp?h=0&a...

[HONEYMON57ER]

I sell 5.4 watt cool white or warm white for about a tenner each. 35,ooo hours and easily as bright as a 35 watt halogen
our customers like them after telling us for years that LEDS were crap and quite rightly so, they were.

[E36GUY]

What's the lumen output?

HONEYMON57ER said:

I sell 5.4 watt cool white or warm white for about a tenner each. 35,ooo hours and easily as bright as a 35 watt halogen
our customers like them after telling us for years that LEDS were crap and quite rightly so, they were.

[HONEYMON57ER]

E36GUY said:

I think it's 220 for warm white and 240 for cool white

[E36GUY]

HONEYMON57ER said:

I think it's 220 for warm white and 240 for cool white

So about half the light output of a 35W halogen then?

[snotrag]

Be interesting to hear about the Colour Rendering on these £10 lamps too!

Guy - does your company do Lumdat files/photometrics for your products? My place don't really deal in anything domestic-y but I'm trying to put together a scheme with some LED downlights for my parents.