>From the vendor point of view they have to sell a product that seems to be
>more expensive and appears to offer 'less numbers' (that wattage figure people
>look for) for your buck.
I suspect they will have done the marketing stuff and worked out how to 'sell'
this lower figure to people without them being suspicious of being sold a dud.
They needed to keep it dead simple so I guess this 'it's X watts but it's
really like Y watts' method ticked all the boxes with their findings. I wonder
when the perception will move on so that those new figures become the 'people's
standard' (think C versus F in temps)
Subject: [USMA:48193] Re: Light bulbs
From: billhoope...@gmail.com
Date: Mon, 12 Jul 2010 09:49:43 -0400
To: usma@colostate.edu
On Jul 11 , at 3:04 AM, Pat Naughtin wrote:
Yesterday I went to a hardware store to buy some low-energy light bulbs. I was
shown some bulbs labelled 24 W and I was assured by a sales assistant that
these were 100 W bulbs. What is going on here?
He must have meant that "these 24 W CF bulbs" produce as much light as "a 100 W
incandescent bulb". That isn't very clear or even correct, but unfortunately,
that's the way "they" do it.
What would make more sense is to state:
"This bulb uses power at 24 W and emits 1200 lumens of light.
For comparison, an incandescent bulb that emits 1200 lumens of light uses power
at a rate of 100 W."
(I'm guessing at the number of the light output in lumens. I don't happen to
have any 24 W CF bulbs available to compare. Most of mine are 13 W and emit 825
lumens.)
Bill Hooper
1810 mm tall
Fernandina Beach, Florida, USA
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SImplification Begins With SI.
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