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Filament lamps -- The end has already started #170181
10/29/07 07:52 AM
10/29/07 07:52 AM
P
pauluk  Offline OP
Member
Joined: Aug 2001
Posts: 7,520
Norfolk, England
In the latest Screwfix catalog: frown

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Large Selection of Test Equipment For Electrical, HVAC, Test & Measurement
Re: Filament lamps -- The end has already started [Re: pauluk] #170190
10/29/07 09:48 AM
10/29/07 09:48 AM
Trumpy  Offline

Member
Joined: Jul 2002
Posts: 8,257
SI,New Zealand
I beg to disagree with them "savings" mentioned in that ad.
That ad assumes that the price of electricity isn't going to rise before the end of the bulbs life.

Re: Filament lamps -- The end has already started [Re: Trumpy] #170262
10/30/07 02:18 PM
10/30/07 02:18 PM
G
geoff in UK  Offline
Member
Joined: Dec 2002
Posts: 195
UK
I would argue with the first two columns. I don't have the means to do quantative measurements of the light outputs, but, subjectively, I do not believe an 11 Watt CFL is as good as a 60 GLS, nor a 20 equivalent to 100 Watt.
Seems very optimistic to me.(But don't blame Screwfix; these are commonly quoted figures.)
Anyone here actually measured their outputs in a scientific manner?

Re: Filament lamps -- The end has already started [Re: geoff in UK] #170293
10/30/07 09:52 PM
10/30/07 09:52 PM
Trumpy  Offline

Member
Joined: Jul 2002
Posts: 8,257
SI,New Zealand
Originally Posted by geoff in UK
I do not believe an 11 Watt CFL is as good as a 60 GLS, nor a 20 equivalent to 100 Watt.

I don't know Geoff,
I've got an 11 watt CFL here in my garage (until I upgrade the lighting) and a 60 watt Incandescent lamp nearer the back and they look reasonably similar in light output.
Of course that is only subjective too, I don't own a lux meter to be able to compare them.

Re: Filament lamps -- The end has already started [Re: Trumpy] #170324
10/31/07 04:55 PM
10/31/07 04:55 PM
Alan Belson  Offline
Member
Joined: Mar 2005
Posts: 1,803
Mayenne N. France
If he price of electricity goes up you 'save' more surely?
If it goes down you pay less!

....er....



Wood work but can't!

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