Compact Fluorescent Lamp

M

mowhoong

Guest
When you turn the CFL on, It will take about 40 sec brighten fully ,
which make it very inconvenient to use.
Can any members help me to explain this phenomenon ? Thank You.

Regards
 
On Wed, 27 Aug 2008, mowhoong wrote:

When you turn the CFL on, It will take about 40 sec brighten fully ,
which make it very inconvenient to use.
Not when it's a light that you are going to keep on for a decent amount
of time. Which realistically where such bulbs best serve. A light
that is being turned on for only a few brief minutes, maybe even less,
won't be an environmental issue, so a CFL won't make a real difference.
But lights that stay on, like an office ceiling light or the light
over the front door, the slow turn on (and even slower when it's cold)
won't matter, but the lower current drain and longer life will be a
significant advantage there.

Michael

Can any members help me to explain this phenomenon ? Thank You.

Regards
 
mowhoong wrote:
When you turn the CFL on, It will take about 40 sec brighten
fully ,
which make it very inconvenient to use.
Can any members help me to explain this phenomenon ? Thank You.

Regards
Wow. I haven't had a crappy CFL like that in years. At the time it was
a Philips lamp. All the cheapos from Home Depot are at full brilliance
immediately - at least it's so subtle I don't notice it if they're
not. Those Philips lamps OTOH were very dim at first.

 
mowhoong wrote:

When you turn the CFL on, It will take about 40 sec brighten fully ,
Depends on brand and model. I know some that are as close to 'instant
on' at close to full brightness as you could reasonably expect. It does
get worse as they age though.

You're either talking about old technology ones or very cheap crap.

I buy Philips or Osram (Sylvania in the USA IIRC).

Graham
 
stratus46@yahoo.com wrote:

mowhoong wrote:
When you turn the CFL on, It will take about 40 sec brighten
fully , which make it very inconvenient to use.
Can any members help me to explain this phenomenon ? Thank You.

Regards

Wow. I haven't had a crappy CFL like that in years. At the time it was
a Philips lamp. All the cheapos from Home Depot are at full brilliance
immediately - at least it's so subtle I don't notice it if they're
not. Those Philips lamps OTOH were very dim at first.
Modern Philips ones in the UK are fine. 20 years or so ago I remember it
being a problem.

Graham
 
Phil Allison wrote:

"Eeysore"
stratus46@yahoo.com wrote:
mowhoong wrote:
When you turn the CFL on, It will take about 40 sec brighten
fully , which make it very inconvenient to use.

Wow. I haven't had a crappy CFL like that in years. At the time it was
a Philips lamp. All the cheapos from Home Depot are at full brilliance
immediately - at least it's so subtle I don't notice it if they're
not. Those Philips lamps OTOH were very dim at first.

Modern Philips ones in the UK are fine.

** Absolute BULLSHIT !!!!!!!!!!!!!

Buy a Philips "Ambience" CFL and see just how horribly slow they are.
That's not what they sell here.

I have had EXCELLENT results with Philips CFLs. In fact almost all of mine
are and have been Philips or Osram. I reckon I got 15,000 hrs out of one of
them.

Graham
 
Phil Allison wrote:

"Eeysore"
mowhoong wrote:

When you turn the CFL on, It will take about 40 sec brighten fully ,

Depends on brand and model. I know some that are as close to 'instant
on' at close to full brightness as you could reasonably expect. It does
get worse as they age though.

You're either talking about old technology ones or very cheap crap.

I buy Philips or Osram (Sylvania in the USA IIRC).

** Philips "Tornado" spiral CFLs are also VERY SLOW to light up fully.

Even with a room temp of 20C they take about 3 minutes.
Haven't seen those ones. At least not that style by Philips.

What is interesting now is the different colour temp phosphors you can get up
to ~ 6400K. They're harsh for home lighting but good for technical work.

Graham
 
Phil Allison wrote:

stratus46@yahoo.com
mowhoong wrote:
When you turn the CFL on, It will take about 40 sec brighten
fully , which make it very inconvenient to use.
Can any members help me to explain this phenomenon ?

All the cheapos from Home Depot are at full brilliance
immediately - at least it's so subtle I don't notice it if they're
not.

** The "cheapos" do light up fast.

Cos the tubes are just loaded with mercury and the heater filaments are
overdriven to hell.

They tend to go " booom " real quick too.
I bought 3 cheapos too. Similar results. Maybe they're more generous with
the mercury ? Not had one go bang though.

Graham
 
Phil Allison wrote:

"Eeysore"
stratus46@yahoo.com wrote:
mowhoong wrote:
When you turn the CFL on, It will take about 40 sec brighten
fully , which make it very inconvenient to use.

Wow. I haven't had a crappy CFL like that in years. At the time it was
a Philips lamp. All the cheapos from Home Depot are at full brilliance
immediately - at least it's so subtle I don't notice it if they're
not. Those Philips lamps OTOH were very dim at first.

Modern Philips ones in the UK are fine.

** Absolute BULLSHIT !!!!!!!!!!!!!

Buy a Philips "Ambience" CFL and see just how horribly slow they are.

That's not what they sell here.

** What a blatant, fucking LIAR you are:

http://www.lamptech.co.uk/Spec%20Sheets/Philips%20Ambiance.htm
Well you won't find them in Morrisons. They do the more conventional looking
ones for 39p.

Graham
 
Phil Allison wrote:

"Eeysore"
mowhoong wrote:

When you turn the CFL on, It will take about 40 sec brighten fully ,

Depends on brand and model. I know some that are as close to 'instant
on' at close to full brightness as you could reasonably expect. It does
get worse as they age though.

You're either talking about old technology ones or very cheap crap.

I buy Philips or Osram (Sylvania in the USA IIRC).

** Philips "Tornado" spiral CFLs are also VERY SLOW to light up fully.

Even with a room temp of 20C they take about 3 minutes.

Haven't seen those ones. At least not that style by Philips.

** Open you fucking eyes - asshole.

http://www.lamptech.co.uk/Spec%20Sheets/Philips%20CFL%20Tornado.htm
Don't care. I use the stick cheap ones.

Graham
 
Phil Allison wrote:

"Eeysore"

http://www.lamptech.co.uk/Spec%20Sheets/Philips%20CFL%20Tornado.htm

Don't care.

** Monstrous ego = zero honesty.
Snipping FUCKHOLE !

You whine about others doing it but you're the arch-expert.

Grahgm
 
Phil Allison wrote:

"Eeysore"

http://www.lamptech.co.uk/Spec%20Sheets/Philips%20Ambiance.htm

Well you won't find them in Morrisons.

** Monstrous ego = blatant LIAR.
Well you won't find them in Morrisons.

Graham
 
Phil Allison wrote:

"Eeysore"
Phil Allison wrote:
"Eeysore"
http://www.lamptech.co.uk/Spec%20Sheets/Philips%20CFL%20Tornado.htm

Don't care.

** Monstrous ego = zero honesty.

Snipping FUCKHOLE !

** What insane crap !!!!

I snipped
Yes you did. The words that placed my comment in context.

STOP IT !

Graham
 
Phil Allison wrote:

"Eeysore"
Phil Allison wrote:
"Eeysore"

http://www.lamptech.co.uk/Spec%20Sheets/Philips%20Ambiance.htm

Well you won't find them in Morrisons.

** Monstrous ego = blatant LIAR.

Well you won't find them in Morrisons.

** Completely ridiculous RED HERRING !!
The fact you can't find them in a major retailer ?

GET A LIFE.

Graham
 
Phil Allison wrote:

"Don Klipstein"

If you want brighter starting and faster warmups, then avoid the ones
with outer bulbs.

** You are SOOOOO full of shit !!

Some of the slowest lighting CFLs are made by Philips and use an exposed
spiral - eg

http://www.lamptech.co.uk/Spec%20Sheets/Philips%20CFL%20Tornado.htm

The "warm up" time is stated to be 2 minutes.

The initial light level is about 10%, it depends on room temp.
They must keep all the bad ones especially for you.

Graham
 
Don Klipstein wrote:

Phil Allison wrote:
"Eeysore"
Phil Allison wrote:
"Eeysore"
Phil Allison wrote:
"Eeysore"

http://www.lamptech.co.uk/Spec%20Sheets/Philips%20Ambiance.htm

Well you won't find them in Morrisons.

** Monstrous ego = blatant LIAR.

Well you won't find them in Morrisons.

** Completely ridiculous RED HERRING !!

The fact you can't find them in a major retailer ?

** Totally irrelevant.

They are readily available from many retailers, world wide.

What a desperate & PATHETIC LIAR !!!

What a desperate & PATHETIC OVER SNIPPER !!!

So, tell us from Australia where in England does one walk in off the
street and find these to be the usual CFLs there. How about available at
all in a retail store for that matter?
Morrisons supermarket does the usual 'bent tube' CFL in Philips brand for 39p
each or 3 for Ł1. They do stock fancy spiral ones too but not Philips.

Graham
 
Phil Allison wrote:

"Eeysore"

http://www.lamptech.co.uk/Spec%20Sheets/Philips%20CFL%20Tornado.htm

The "warm up" time is stated to be 2 minutes.

The initial light level is about 10%, it depends on room temp.

They must keep all the bad ones especially for you.

** Wot a desperate mental retard.
Indeed you are. I have had ZERO problems with any CFL except dropping one
once.

Graham
 
Phil Allison wrote:

"Eeysore"

I have had ZERO problems with any CFL except dropping one
once.

** The YOU are clearly NOT in any position to discuss the many
problems with CFLs.
I've been using them for 20 years. Buy quality brands and you'll see no
problems. Sure, they age a bit after many thousands of hours. At 39p I
can afford to replace them then.

How long have YOU been using them ?

Graham
 
Don Klipstein wrote:

Phil Allison wrote:

** It is very common in bathrooms, in winter, in many places for the temp
to fall to near 0C overnight.

What a utterly stupid ass you are.

Oh please, cite when and where? Besides outhouses and single family
dwellings befallen by severe winter storms that interrupt power for days?
It did happen to my bathroom when I was living elsewhere and left the house
unoccupied for some months.

The frozen water squeezed one pipe out of a compression joint. It was a bugger
to get at and fix too.

Other than that, the idea sounds utterly absurd.

Graham
 

Welcome to EDABoard.com

Sponsor

Back
Top