New bulbs. - Page 10

Less · 15-03-2007, 14:38

Quote:

Originally Posted by SPUGGIE J

Errr lets see now; phone a friend, 50 - 50 ask the audience????

Phone a friend? on accyweb? Don't be silly!

Neil · 15-03-2007, 16:32

Quote:

Originally Posted by Lampman

I realise how in the dark I am!

Maybe you need to buy a larger wattage compact fluorescent lamp. They do give out less light than incandescent lamps you know.

Less · 15-03-2007, 18:21

Quote:

Originally Posted by Neil

Maybe you need to buy a larger wattage compact fluorescent lamp. They do give out less light than incandescent lamps you know.

I'd heard it's nowt to do with the wattage, would you have a theory to back that statement up? Or is there a site that you could recommend where all the experts gather and have a friendly discussion about the pros and cons of each type of bulb?

(All the bulbs look a bit dim with these glasses on).

andrewb · 15-03-2007, 19:47

I must say this thread has kept me well entertained for several nights now.

I've researched more in to it and am now more clear (well more clear than before) about it.

Fact:The colour of light matters. Therefore Jambutty is wrong.

This picture from newscientist perfectly illustrates it:

As you can see, quite clearly, the purple and green bars are at the red end of the visible light spectrum, and they don't cover the blue end.
To rephrase that, it means red light can be used and absorbed but blue light can't.

I'll be honest, I don't perfectly understand why it is. I have struggled for many many hours trying to find out, but nowhere I have found explains every piece of the jigsaw, however I think it's ok to accept a respectable source such as newscientist without having to do all the proof myself, as I doubt this would be beneficial as it would be very hard for anybody to understand.

I might not write perfectly, and some of my writing might be open to attack by pedantic persons, but if things are read in context then usually people can understand what im getting at instead of picking at small mistakes I might have left in my English that could be 'interpreted' as me contradicting myself.

At the end of the day, I can't force Jambutty or anybody else who disagrees with physics that I, or any of the websites I have viewed are right.

Jambutty was right in one aspect, it appears the Energy Saving lightbulb that he posses gives out 21 less luminance, but thats 2.6%, it's negligible really, you can't notice the difference with your own eyes (well I certainly can't). To make a link between the solar powered calculator having to be much closer to work though, explaining brightness, is just simply wrong. As I have stated above and quoted a picture from newscientist, solar dosn't work off the majority of (blue) light given off by LE lightbulbs.

I have no doubt Jambuttys mile long speech where he pedantically analyzed my text will probably be his last post on the subject, because he doesn't want to accept defeat, but really, you can't argue with fact, the colour of light does matter.

Lampman · 15-03-2007, 20:22

Ye canna deny the flaws of critics!

Ianto.W. · 15-03-2007, 20:27

Liberal +amounts of jambutties= De-Shark bait guaranteed to trap even the elusive Jaws, pedanticaly speaking, goes to prove the elementary theory that bull**** baffles brains.

Lampman · 15-03-2007, 20:34

Now that I have a BS in(MASTERS DEGREE).

cashman · 15-03-2007, 21:54

anyone gotta light?

andrewb · 30-03-2007, 21:25

Look what I found in DeSharks flat last night

Less · 30-03-2007, 22:41

A pint glass filled with (I hope) wallpaper paste?

andrewb · 31-03-2007, 00:06

It was a candle.

MargaretR · 31-03-2007, 00:10

I have used low energy bulbs since 1991. Then they were VERY expensive and took a while to get to full brilliance. On moving house 4 years ago I left them behind and I bought new stock.I am glad to say (I retyped 'delighted') that the technology had improved and the prices have come down, and they are available in all sizes except pygmy size (YES - even candle and small globe size!!!) It is worth the (now small) extra cost just to not need to keep changing a bulb. I have daylight spectrum bulbs in ceiling fittings to kid my brain that its Summer during long winter dark days and have to revert to the ordinary (non daylight) spectrum lights in table lamps in the evenings to convince my brain that it is not 12noon on a midsummer day when it is acually bedtime. I wouldnt be without them - what surprises me is that people dont want to lose the old tungsten bulbs - Perhaps the few that they have tried are the original old(er) bulky types which came out originally.
Try the latest tech ones and Im sure you will be 'converted'

MargaretR · 31-03-2007, 01:21

I have tried my best with a cheap webcam to show you 2 types of low energy bulbs I use.
The tape measure shows 4" & 5" - large bayonet & small bayonet fitting.