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Chat Area => General Discussion Area => Topic started by: Turk on 24 October 2009, 21:35:21

Title: Tesco "Value" eco-bulbs
Post by: Turk on 24 October 2009, 21:35:21
Fair doos, came on as soon as I flicked the switch. None of this 2 second delay, and then a single candles worth, slowly increasing in illumination.
Ok, they still take a couple of mins to reach full power and none of them will match the light from a "proper" bulb, but at least the Tesco own brand cheapies give a useable light instantly. 
Title: Re: Tesco "Value" eco-bulbs
Post by: ENFIELD_MV6 on 24 October 2009, 21:39:21
sainsburys were doing 5 phillips energy saving buls for 50p so bought 25 of them lol
Title: Re: Tesco "Value" eco-bulbs
Post by: Debs. on 24 October 2009, 21:41:39
Quote
Fair doos, came on as soon as I flicked the switch. None of this 2 second delay, and then a single candles worth, slowly increasing in illumination.
Ok, they still take a couple of mins to reach full power and none of them will match the light from a "proper" bulb, but at least the Tesco own brand cheapies give a useable light instantly. 

 ::) My lights are fully bright in about a 25th. of a second! ;D

......but they do turn themselves on and off 50 times a second! :(
Title: Re: Tesco "Value" eco-bulbs
Post by: Mr Skrunts on 24 October 2009, 21:41:52
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sainsburys were doing 5 phillips energy saving buls for 50p so bought 25 of them lol


I was send some from some where.  Fitted one in the living room 2 weeks ago, replaced it 3 days ago.     Craaaaaaaaaaaaaaaaaaaaaaaap >:(
Title: Re: Tesco "Value" eco-bulbs
Post by: Turk on 24 October 2009, 21:42:18
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sainsburys were doing 5 phillips energy saving buls for 50p so bought 25 of them lol

I think the Tesco jobbies were a £1.00 BOGOF offer.
Title: Re: Tesco "Value" eco-bulbs
Post by: Turk on 24 October 2009, 21:43:41
Quote
Quote
Fair doos, came on as soon as I flicked the switch. None of this 2 second delay, and then a single candles worth, slowly increasing in illumination.
Ok, they still take a couple of mins to reach full power and none of them will match the light from a "proper" bulb, but at least the Tesco own brand cheapies give a useable light instantly. 

 ::) My lights are fully bright in about a 25th. of a second! ;D

 :-? Wot, eco-jobbies ???
Title: Re: Tesco "Value" eco-bulbs
Post by: Richie London on 24 October 2009, 21:44:34
ive got about 30  60watt peach bulbs in the cupboard, they should last about 10 years
Title: Re: Tesco "Value" eco-bulbs
Post by: Debs. on 24 October 2009, 21:46:13
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Quote
Quote
Fair doos, came on as soon as I flicked the switch. None of this 2 second delay, and then a single candles worth, slowly increasing in illumination.
Ok, they still take a couple of mins to reach full power and none of them will match the light from a "proper" bulb, but at least the Tesco own brand cheapies give a useable light instantly. 

 ::) My lights are fully bright in about a 25th. of a second! ;D

 :-? Wot, eco-jobbies ???

No, they`re the Europhobe 'planet killer' (proper) bulbs! ;D
Title: Re: Tesco "Value" eco-bulbs
Post by: Mr Skrunts on 24 October 2009, 21:47:40
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Quote
Quote
Quote
Fair doos, came on as soon as I flicked the switch. None of this 2 second delay, and then a single candles worth, slowly increasing in illumination.
Ok, they still take a couple of mins to reach full power and none of them will match the light from a "proper" bulb, but at least the Tesco own brand cheapies give a useable light instantly. 

 ::) My lights are fully bright in about a 25th. of a second! ;D

 :-? Wot, eco-jobbies ???

No, they`re the Europhobe 'planet killer' (proper) bulbs! ;D

PMSL.   ;D ;D ;D  :y :y :y
Title: Re: Tesco "Value" eco-bulbs
Post by: Marks DTM Calib on 24 October 2009, 21:53:38
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Quote
Quote
Quote
Fair doos, came on as soon as I flicked the switch. None of this 2 second delay, and then a single candles worth, slowly increasing in illumination.
Ok, they still take a couple of mins to reach full power and none of them will match the light from a "proper" bulb, but at least the Tesco own brand cheapies give a useable light instantly. 

 ::) My lights are fully bright in about a 25th. of a second! ;D

 :-? Wot, eco-jobbies ???

No, they`re the Europhobe 'planet killer' (proper) bulbs! ;D

100 times a second.....i.e. each zero crossing point (once every half cycle)  :y
Title: Re: Tesco "Value" eco-bulbs
Post by: Debs. on 24 October 2009, 22:00:10
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100 times a second.....i.e. each zero crossing point (once every half cycle)  :y

 ;D Truth always Hertz! ;D

....I`d better sine off with a wave! :y
Title: Re: Tesco "Value" eco-bulbs
Post by: Richie London on 24 October 2009, 22:04:35
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Quote

100 times a second.....i.e. each zero crossing point (once every half cycle)  :y

 ;D Truth always Hertz! ;D

....I`d better sine off with a wave! :y

watt you on about  ::) ::) ::)
Title: Re: Tesco "Value" eco-bulbs
Post by: Dishevelled Den on 24 October 2009, 22:14:33
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Quote
Quote

100 times a second.....i.e. each zero crossing point (once every half cycle)  :y

 ;D Truth always Hertz! ;D

....I`d better sine off with a wave! :y

watt you on about  ::) ::) ::)


sorry Richie can't throw any light on it as I'm current-ly quite con-fused ::) :y
Title: Re: Tesco "Value" eco-bulbs
Post by: Ken T on 24 October 2009, 22:17:44
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Quote
Quote
Quote

100 times a second.....i.e. each zero crossing point (once every half cycle)  :y

 ;D Truth always Hertz! ;D

....I`d better sine off with a wave! :y

watt you on about  ::) ::) ::)


sorry Richie can't throw any light on it as I'm current-ly quite con-fused ::) :y

My fav method of transport is 2Hz.
Title: Re: Tesco "Value" eco-bulbs
Post by: Dishevelled Den on 24 October 2009, 22:32:55
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Quote
Quote
Quote
Quote

100 times a second.....i.e. each zero crossing point (once every half cycle)  :y

 ;D Truth always Hertz! ;D

....I`d better sine off with a wave! :y

watt you on about  ::) ::) ::)


sorry Richie can't throw any light on it as I'm current-ly quite con-fused ::) :y

My fav method of transport is 2Hz.

...that sould be amp-le ::) :y
Title: Re: Tesco "Value" eco-bulbs
Post by: Andy B on 24 October 2009, 22:38:41
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Quote

100 times a second.....i.e. each zero crossing point (once every half cycle)  :y

 ;D Truth always Hertz! ;D

....I`d better sine off with a wave! :y

groan ...........  ;D  ;D  ;D
Title: Re: Tesco "Value" eco-bulbs
Post by: cem_devecioglu on 24 October 2009, 22:41:18
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Quote
Fair doos, came on as soon as I flicked the switch. None of this 2 second delay, and then a single candles worth, slowly increasing in illumination.
Ok, they still take a couple of mins to reach full power and none of them will match the light from a "proper" bulb, but at least the Tesco own brand cheapies give a useable light instantly. 

 ::) My lights are fully bright in about a 25th. of a second! ;D

......but they do turn themselves on and off 50 times a second! :(

 ;D 50 hz standard bulbs.. :y :y
Title: Re: Tesco "Value" eco-bulbs
Post by: KillerWatt on 25 October 2009, 08:34:22
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100 times a second.....i.e. each zero crossing point (once every half cycle)  :y
I think you'll find the invertor is switching slightly quicker than that.


@ Turk,
You ain't getting anywhere near the claimed lifespan from the Tesco ones mate.
Title: Re: Tesco "Value" eco-bulbs
Post by: waspy on 25 October 2009, 08:49:51
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Fair doos, came on as soon as I flicked the switch. None of this 2 second delay, and then a single candles worth, slowly increasing in illumination.
Ok, they still take a couple of mins to reach full power and none of them will match the light from a "proper" bulb, but at least the Tesco own brand cheapies give a useable light instantly. 

I prefer them like that, they don't burn out my retina's with instant light 8-)
Title: Re: Tesco "Value" eco-bulbs
Post by: Marks DTM Calib on 25 October 2009, 10:13:01
Quote
Quote
100 times a second.....i.e. each zero crossing point (once every half cycle)  :y
I think you'll find the invertor is switching slightly quicker than that.


@ Turk,
You ain't getting anywhere near the claimed lifespan from the Tesco ones mate.

Lol, read the thread (terribly sorry old boy, I am a little tired)....we are of course refering to standard incandescant bulbs
Title: Re: Tesco "Value" eco-bulbs
Post by: KillerWatt on 25 October 2009, 10:33:14
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Lol, read the thread (terribly sorry old boy, I am a little tired)....we are of course refering to standard incandescant bulbs
Didn't notice the thread had detracted slightly.

Anyway, I wonder when (or if) the powers that be will ever decide to let on that CFL's (especially the cheap ones) have pi$$ poor power factor correction (so poor in fact, it isn't uncommon to see them draw more current than it's equivalent incandescant when in use).

Now while the user is still charged for electricity by the "unit" (watt/hour), that extra current still has to be generated at the power station, which means it can't be as "green" as they tell us.
Title: Re: Tesco "Value" eco-bulbs
Post by: I_want_an_Omega on 25 October 2009, 20:37:59
I guesss its a SINE of the times ,,,,,,,
Title: Re: Tesco "Value" eco-bulbs
Post by: Kevin Wood on 25 October 2009, 20:50:29
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Didn't notice the thread had detracted slightly.

Anyway, I wonder when (or if) the powers that be will ever decide to let on that CFL's (especially the cheap ones) have pi$$ poor power factor correction (so poor in fact, it isn't uncommon to see them draw more current than it's equivalent incandescant when in use).

Now while the user is still charged for electricity by the "unit" (watt/hour), that extra current still has to be generated at the power station, which means it can't be as "green" as they tell us.

Sssh! They'll be forcing us to go back to DC mains next. ;)

Kevin
Title: Re: Tesco "Value" eco-bulbs
Post by: Brick Tamland on 25 October 2009, 20:56:50
Am I right in assuming that "proper" bulbs arn't banned outright, just the import (not manufacturing and selling).  :-?

There's a big factory here that makes them and are still in plentifull supply from all supermarkets.  ::)

Title: Re: Tesco "Value" eco-bulbs
Post by: Pitchfork on 25 October 2009, 22:43:45
Is there a flicker of humour running through this thread?
Title: Re: Tesco "Value" eco-bulbs
Post by: KillerWatt on 26 October 2009, 08:08:26
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Am I right in assuming that "proper" bulbs arn't banned outright, just the import (not manufacturing and selling).  :-?
The ban only applies to lamps that are designated for "household use".
There is nothing to stop you going to your electrical wholesaler and purchasing "rough service" lamps however, which are exactly the same (except they last longer).
Title: Re: Tesco "Value" eco-bulbs
Post by: rikki_essex on 26 October 2009, 09:23:41
The planet saving bulbs in my bath room started to take quite a while to come on and i could even turn the light on get in the shower get out and dry and then the light would come on. So i thought id better change them so took the cover off and theres two of them so went to asda and none of the ones i want so off to b&q found them a £5.95 each what a rip off
Title: Re: Tesco "Value" eco-bulbs
Post by: doog on 26 October 2009, 11:32:19
this thread is megger funny   :y

Doug
Title: Re: Tesco "Value" eco-bulbs
Post by: Kevin Wood on 26 October 2009, 11:43:26
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this thread is megger funny   :y

Doug

Some Wayne Kerr set it off at a tangent, that's why.  ;D

Kevin
Title: Re: Tesco "Value" eco-bulbs
Post by: Varche on 26 October 2009, 11:47:45
Not as funny as the fact that we are all using 50 Hz instead of the more efficient 60 Hz as originally devised. From memory I think we have the Germans(Siemens maybe) to thank for the change which was quite arbitrary to fit better metrically. Actually it isn't quite global but not far off.

I will be interested to see if these "efficient but b****y expensive" bulbs do last as long as they say.

They have disappeared off the shelves here except for the "pound" shops which have loads of 100Watt bulbs etc for sale still.

Varche
Title: Re: Tesco "Value" eco-bulbs
Post by: Dishevelled Den on 26 October 2009, 11:54:09
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this thread is megger funny   :y

Doug

Some Wayne Kerr set it off at a tangent, that's why.  ;D

Kevin




....shocking!- this is no way to conduct a thread ::) ;D ;D
Title: Re: Tesco "Value" eco-bulbs
Post by: Kevin Wood on 26 October 2009, 12:05:49
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Not as funny as the fact that we are all using 50 Hz instead of the more efficient 60 Hz ...

I'm not sure I would agree that 60Hz would be more efficient. It has some advantages in that transformer cores and motor stators can be made slightly smaller but hysteresis and eddy current losses generally increase with frequency as do the reactive losses in transmission lines.

Kevin
Title: Re: Tesco "Value" eco-bulbs
Post by: zirk on 26 October 2009, 17:15:47
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this thread is megger funny   :y

Doug

Some Wayne Kerr set it off at a tangent, that's why.  ;D

Kevin

Ohm Dear, hope its not going down the AC/DC route.
Title: Re: Tesco "Value" eco-bulbs
Post by: Pitchfork on 26 October 2009, 17:29:27
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Not as funny as the fact that we are all using 50 Hz instead of the more efficient 60 Hz ...

I'm not sure I would agree that 60Hz would be more efficient. It has some advantages in that transformer cores and motor stators can be made slightly smaller but hysteresis and eddy current losses generally increase with frequency as do the reactive losses in transmission lines.

Kevin
What was his No. 1 hit???
Title: Re: Tesco "Value" eco-bulbs
Post by: KillerWatt on 26 October 2009, 19:08:41
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Not as funny as the fact that we are all using 50 Hz instead of the more efficient 60 Hz ...

I'm not sure I would agree that 60Hz would be more efficient. It has some advantages in that transformer cores and motor stators can be made slightly smaller but hysteresis and eddy current losses generally increase with frequency as do the reactive losses in transmission lines.

Kevin
A wasted explanation Kev  :(
Title: Re: Tesco "Value" eco-bulbs
Post by: Kevin Wood on 27 October 2009, 10:05:40
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A wasted explanation Kev  :(

Alas you might be right. Still, keeps me sharp while I'm occupied just herding virtual electrons around inside the registers of a CPU.  ;)

Kevin