1p Energy Saving Bulbs

Jamsyke

bloxwich1934 wrote: »

Sorry Tesco, but this may cost you loads.

I doubt it. If Tesco are losing money on this I'll eat my hat.

They are almost certainly getting them from Powergen (e.on energy), possibly subsidised by the government or perhaps as part of a deal to supply Tesco's energy requirements nationwide.

quoia

EmehEm2005 wrote: »

.................
Has anyone seen a 200 watt energy saving lightbulb anywhere?
................

If I needed 200W I'd use 2 x 100W (cost 2p)
I could easily make an adapter to fit 2 bulbs into 1 socket for little more than £1 - in fact I think I've seen the genuine article for sale in France or Spain

EDIT UPDATE - Just remembered something from way back and spoke to my dad. He actually has a 2 way Bayonet Cap lamp adapter - had it over 50 years (might even be made out of Bakelite - I known it's dark brown) - Just what you need !

Jamsyke

EmehEm2005 wrote: »

Has anyone seen a 200 watt energy saving lightbulb anywhere?

Most of the standard ranges stop at 23w which is equiv to about 125w.
Do a search for "30w liliput", these are available in BC & ES. The literature says equiv to 150w but it's probably higher than any others you've found.

Alternatively you can save a bit of energy and get a much longer life by changing to 160w MLL mercury bulb. These are designed to replace 200w GLS bulbs in industrial applications, I'm not sure about the 'warm up' time or how the colour of the light compares. A bit more expensive but ridiculously long life at 20,000 hours.

PrinceGaz

geoffholman wrote: »

Can somebody tell me why you can't use these with a timeswitch and in an enclosed fitting? After all a timeswitch only does the same thing as you switching it on manually. As these generate less heat than the 'old' type, what's wrong with putting them in an enclosed fitting?

The reason CFL lights are not recommended for use in enclosed fittings is because of heat.

Now I know someone is going to say that CFL bulbs are much cooler than standard tungsten filament bulbs, and that is very true in open sockets where air-convection directly carries heat away from the surface of the light. The problem is that in enclosed fittings, there is next to no convection cooling of the bulb. That causes the heat to build up until it can be efficiently conducted or radiated directly from the bulb, and that will result in a much higher temperature than normal being reached by a CFL bulb (tungsten bulbs radiate most the heat anyway because of the very high temperature of the filament).

Tungsten filament bulbs are designed to tolerate quite high temperatures (high temperatures are a given when there is a wire of tungsten inside the bulb with a temperature of 2000-3000C, and the glass surface around it reaching typically 200C). Most CFL bulbs have electronic circuitry (the ballast) inside which will fail or have a much reduced life at the temperatures reached in enclosed fittings. There are special CFL bulbs available which can be used in enclosed fittings as they are designed to be able to tolerate high temperatures, but standard CFL bulbs are not suitable. The 6-year ones on offer for 1p might be lucky to last six months if used in a socket with no ventilation.

TescoEmployee

bloxwich1934 wrote: »

:j :j :j .
Sorry Tesco, but this may cost you loads.
A tip that I picked up from 'Martins Money saving tips', is that Tesco, (and most other supermarkets), will give you a voucher to obtain 'special offers' later, if they run out of stock before the offer ends. Present the voucher when the offered goods are back in stock, and you will only have to pay the 'special offer' price
Happy hunting,
Leo.

Tesco have covered this - The SELs state "Reduced To Clear" on them and all the instore and national media advertising states "While Stocks Last".

We could indeed issue you with a special offer price promise voucher for a 6 year Energy lightbulb but seeing as we will not be selling them anymore after this stock has gone it will be pretty worthless to you.

TescoEmployee

Jamsyke wrote: »

I doubt it. If Tesco are losing money on this I'll eat my hat.

They are almost certainly getting them from Powergen (e.on energy), possibly subsidised by the government or perhaps as part of a deal to supply Tesco's energy requirements nationwide.

The offer has been funded - Tesco announced this in the press release regarding the promotion. The price will also not be increasing from 1p - They will stay at this price until entire company stock has been depleted.

heyjustme

PrinceGaz wrote: »

The reason CFL lights are not recommended for use in enclosed fittings is because of heat.

..........snip..........

. The 6-year ones on offer for 1p might be lucky to last six months if used in a socket with no ventilation.

OMG I am gonna ave to get more:eek:
thank for this info:T

***xyz***

Changed the bulbs in my house for my spinky new 1p ones last night, but noticed on the box that you can't use them with dimmer switches.

May just be on the type that I purchased, but you may want to check yours if you haven't already....!

CharleneUK

Manage to get 4 'value' ones and 4 screw ones. Apparently we can't use the screw ones! Doh!! lol, only wasted 4p, I can't cry over it.

Was plenty left in Tesco Thornton Heath.

mrsv05

LittleBill wrote: »

You shouldn't use them with dimmer switches ... we needed to get two switches replaced after we had used them when we first moved into our house ...

Nothing 'explodes' ... the dimmers just stop working!

good job i wasn't talking about dimmers then isn't it !!!