cfl's

[Damian]

The govt conned themselves...


Unlikely given that none of them are made here.

The best of them do.

Mine have been quite literally free.

Bullshit.

Yes. they do, whether it gets out enough to damage our skin, etc is another
story. That would depend on the quality of the bulb and the age.

 

[Damian]

whoever conned the govt into mandating their use

I'm not aware of anybody mandating it.
I believe it's a choice, so far.

must be laughing all the way to the bank. not only are they an
environmental hazed, they are simply not cost effective. they don't last 10
times longer than

The ones I buy dirt cheap from warehouses do last lot longer than that.

conventional bulbs, or however many times it was supposed to be, and they
cost heaps more.

They cost more, dunno about heaps more. Depends where you buy it and how
smart shopper you are.

 

[Phil Allison]

"Damian"

"felix_unger"

I'm not aware of anybody mandating it.

** GLS bulbs ( that do not met MEPS) were taken off sale several years
ago - it is now a punishable offence to sell them.

I believe it's a choice, so far.

** Only for those with a stash of such bulbs OR are using the still legal
halogen kind.

Which is a hoot since they have little of no efficiency advantage.

Eg like these:

http://cdn.ukofficedirect.co.uk/od/item/180241/0-Huge-0.jpg


..... Phil

 

[SG1]

I buy my cool white CFLs in Woolworths. Most recently, a few months ago.

Sylvia.

That is where I got some but our favourite wollies no longer sells them,
Woolies brand that is, too many claims for them not lasting I would say. Had
to take one back that died an early death and anoth died the other week.
SWMBO prefers incandescants.

 

[Rod Speed]

Yes. they do,

No they don’t. UV doesn’t get thru glass.

whether it gets out enough to damage our skin, etc is another story. That
would depend on the quality of the bulb and the age.

Nope, because UV doesn’t get thru glass.

 

[Rod Speed]

I'm not aware of anybody mandating it.

It was mandated anyway.

I believe it's a choice, so far.

You're wrong, as always.

The ones I buy dirt cheap from warehouses do last lot longer than that.

I get them for free and they last fine. Haven't had to replace any of them.

They cost more,

Nope, mine didn’t. Didn’t cost a cent.

dunno about heaps more. Depends where you buy it and how smart shopper you
are.

In spades when you get them for free.

 

[Phil Allison]

"Rod Speed"

Nope, because UV doesn’t get thru glass.

** I wonder how they make "black light " fluoro tubes then ?

Are the tubes made from quartz glass ?



..... Phil

 

[Phil Allison]

"felix_unger"

It can't happen soon enough

** Don't hold you breath waiting for LED bulbs to overtake CFLs.

There are a number of major technical problems that make it near impossible
to produce * genuine equivalents * to CFL or fluoro tubes with a LED
rray - let alone beat them.

LED efficiency is one, colour quality another and LEDs intolerance to heat a
third.



... Phil

 

[Sylvia Else]

That is where I got some but our favourite wollies no longer sells them,
Woolies brand that is, too many claims for them not lasting I would say.
Had to take one back that died an early death and anoth died the other
week. SWMBO prefers incandescants.

I was buying Philips brand in Woolies. But since you have a SWMBO, the
point seems moot.

Sylvia.

 

[Jeßus]

That's why they make different color temp versions, and have done with
normal tubes before CFL's even existed.
My preference is by far for quad phospur long tubes. They put out a better
spread of light for the same energy, and a bettter spectrum spread as well.

True, I have a pair of quads in the kitchen, and also a down light
with a 4.5W LED, which is on most of the time in the evenings.

 

[Trevor Wilson]

it hasn't really become cost effective yet, and I tried some, but the
output is too low. ok for desklamps tho.

**More bollocks. I have a 100 Watt LED here right now. It is (measurably
and visibly) brighter than a 500 Watt halogen floodlight. LEDs head
lamps are now common-place amongst some automobiles.

So much for your "desklamp" bullshit.

Do some research, before you post more of your nonsense.

Refs:

http://lumin8lighting.com.au/category/floodlights

http://www.toyota.com.au/prius-v/range

 

[felix_unger]

No they don’t. UV doesn’t get thru glass.


Nope, because UV doesn’t get thru glass.

That must be why solariums are not dangerous then..

 

[felix_unger]

But not enough to be of any concern. I guess you never watched an old CRT TV
or heaven forbid used a CRT computer monitor as they are far worse for
radiation emmision.

everybody used CRT monitors. there was no other choice until LCD's came
on the market

Trevor.

 

[felix_unger]

**More bollocks. I have a 100 Watt LED here right now.

and how much did you pay for it?

 

[Trevor Wilson]

and how much did you pay for it?

**Utterly and completely fucking irrelevant. I responded to yet another
of your ignorant claims. Nothing more.

FWIW: I paid $60.00 for it. It sure cost more than the halogen, but
costs 1/5th the amount of electricity to operate and radiates 20% of the
heat. In confined spaces, it is well worth it. Lots of light and minimal
heat.

 

[Trevor Wilson]

That must be why solariums are not dangerous then..

**Points:

* A typical tanning bed uses 24 X 100 Watt fluoros.
* The lamps used employ a phosphor which is SPECIFICALLY designed to
produce UV radiation.
* The person using the bed is often within 100mm of the lamps (don't
forget that pesky inverse square law applies with UV radiation)

Stop grasping at straws. Your ignorant claims have been demolished. Shut
the **** up.

 

[Phil Allison]

"Trevor Wilson"

**Points:

* A typical tanning bed uses 24 X 100 Watt fluoros.

* The lamps used employ a phosphor which is SPECIFICALLY designed to
produce UV radiation.

** The mercury vapour discharge inside any fluro produces little else.

* The person using the bed is often within 100mm of the lamps (don't
forget that pesky inverse square law applies with UV radiation)

** Invese square law ONLY applies to a point source of light.

Stop grasping at straws.

** Wot - like you are ?

FYI Fluoros used for UV light uses special glass like quartz.


.... Phil

 

[Trevor Wilson]

"Trevor Wilson"



** The mercury vapour discharge inside any fluro produces little else.



** Invese square law ONLY applies to a point source of light.



** Wot - like you are ?

FYI Fluoros used for UV light uses special glass like quartz.

**Indeed. As a 60s-70s guy I used UV tubes quite a bit at parties (as
I'm sure you did). Those (so-called 'black light') tubes did use a
special glass. Unlike the moron I responded to, I did a little
rudimentary research into tanning beds. The fluoro types use a phosphor
coated tube, in which the phosphors are specifically designed to produce
UV-A and UV-B. I don't know if they use special glass or not, though it
seems likely that they do, given the attenuation of UV through regular
glass.

 

[Trevor]

everybody used CRT monitors. there was no other choice until LCD's came on
the market

Right, and how many died from them? CFL's are far less dangerous.

Trevor.

 

[felix_unger]

**Points:

* A typical tanning bed uses 24 X 100 Watt fluoros.
* The lamps used employ a phosphor which is SPECIFICALLY designed to
produce UV radiation.
* The person using the bed is often within 100mm of the lamps (don't
forget that pesky inverse square law applies with UV radiation)

Stop grasping at straws. Your ignorant claims have been demolished.

UV does pass thru glass

Shut the **** up.

you STFU (egotistical twit!)