Energy saving spotlights

don0301

AdmiralX wrote: »

Google you will find a lot; much of that the kids learn at GCSE and A levels

google? why?

you think you can state something silly, and i call you on it. I have to prove it bo!!ocks?

so explain to me why 100W bulbs are illegal now, if so in your words they are more "efficient"? lol

don0301

AdmiralX wrote: »

We are not yet sure that cause energy saving. As light itself it uses less energy but the incandescent old lamps radiated heat, that is they heated the rooms. The new "energy saving" ones do not. It was found that households using the new bulbs increased energy consumption rather than lowered because they cause the people to turn up heating.

Do you know the energy saving bulbs life? compared to the old staff?

google? why?

you think you can state something silly, and i call you on it. I have to prove it bo!!ocks?

so explain to me why 100W bulbs are illegal now, if so in your words they are more "efficient"? lol

don0301

let me help you out admiralx

Some governments around the world have passed measures to phase out incandescent light bulbs for general lighting. The aim is to encourage the use and technological development of more energy-efficient lighting alternatives

The UK government announced in 2007 that incandescent bulbs would be phased out by 2011.[22] The UK followed the EU-wide ban on 60w incandescent bulbs that came into effect on 1 September 2011; [23] 40w and lower ratings will be phased out in 2012

to add:

European Union
The initial Europe wide ban only applies to general-purpose, non-directional incandescent bulbs, so does not affect any bulbs with reflective surfaces (e.g. spotlights and halogen down lighters) or special purpose bulbs including those used in ovens, fridges, traffic lights, infrared lamps etc. The sale of the most inefficient bulbs will be phased out. The first types to go are non-clear (frosted) bulbs, which would be off the market by September 2009. Also from September 2009 clear bulbs over 100W must be made of more efficient types. This limit will be moved down to lower wattages, and the efficiency levels raised by the end of 2012.[15] Also, the EU has given the target of 2016 to phase out halogen bulbs, and any bulb available for purchase after the 2016 date must have at least a 'B' energy rating.[16] The Finnish parliament discussed banning sales of incandescent light bulbs by the beginning of 2011.[17]

God help the kids learning GCSE and A level hey?

marleyboy

Asda have a good range of spotlight style energy bulbs. (ideal for kitchen spotlight lighting). They also have an array of shapes\sizes to accommodate conventional lighting, price range between £3-£6 but sometimes do them on BOGOF.

Ben84

AdmiralX wrote: »

We are not yet sure that cause energy saving. As light itself it uses less energy but the incandescent old lamps radiated heat, that is they heated the rooms. The new "energy saving" ones do not. It was found that households using the new bulbs increased energy consumption rather than lowered because they cause the people to turn up heating.

Do you know the energy saving bulbs life? compared to the old staff?

We don't always want light and heat at the same time. It makes more sense that lightbulbs emit light and heaters emit heat, so that we have more control over our environment.

Anyway, I accept that a lightbulb emitting heat in a thermostatically controlled heated room will result in the thermostat turning the heating on slightly less often, but I don't believe removing this heat source is causing people to use more energy. In the worst case situation they would use the same amount of energy to attain the same temperature inside the house as it is now being emitted by another appliance in the room. Basically, to heat your room to any temperature requires a set amount of energy, it may come from one or more sources, but in this example you're simply reducing the energy input to the heater by increasing the energy input to the lightbulb. No net gain is the result, your electric meter will count just as many kWh used.

AdmiralX

Probably this is of help:
http://www.guardian.co.uk/environment/blog/2011/feb/22/rebound-effect-climate-change
in fact Guardian do suggest that politicians of all colours tried to avoid carbon tax and nuclear energy embarrassment but perhaps this is coming.

And probably we need the renewables.

Ben84

AdmiralX wrote: »

Probably this is of help:
http://www.guardian.co.uk/environment/blog/2011/feb/22/rebound-effect-climate-change
in fact Guardian do suggest that politicians of all colours tried to avoid carbon tax and nuclear energy embarrassment but perhaps this is coming.

And probably we need the renewables.

I've wondered about this before, when doing something good for the environment we can often save money, so we spend it on something else sooner or later that presumably comes with some environmental cost of its own.

I think a lot of people are looking at things like energy saving bulbs and insulation in isolation, rather than a bigger picture. I think with the lack of information about these secondary effects and the huge range of possibilities about how we might spend the money we save, it's fair enough to say the savings are what you make of them in personal and environmental terms. Some people may be spending them on air flights for holidays, others may be giving them to environmental charities.

Being sustainable may be much deeper than going through the motions of insulating and driving less, in which case many of us (me included) may not be as sustainable as we once thought.

A good way to spend this money sustainably with some benefit for yourself I might suggest is to buy second hand items with it - but then the ability to buy so much second hand stuff is a product of others' excessive consumption and maybe the second hand market indirectly feeds the new market? Is there actually any easy answer for an individual who still wishes to live a modern lifestyle? I'm not convinced there is, but I think it's something we're going to have to consider carefully soon enough. Right now however, I think we should do the green things as they promise some benefit for the environment and generally benefit the people who do them, then see where we end up and change again if needed. The whole thing is a big experiment and learning lesson for all of us.

AdmiralX

Ben84 wrote: »

I've wondered about this before, when doing something good for the environment we can often save money, so we spend it on something else sooner or later that presumably comes with some environmental cost of its own.

I think a lot of people are looking at things like energy saving bulbs and insulation in isolation, rather than a bigger picture. I think with the lack of information about these secondary effects and the huge range of possibilities about how we might spend the money we save, it's fair enough to say the savings are what you make of them in personal and environmental terms. Some people may be spending them on air flights for holidays, others may be giving them to environmental charities.

Being sustainable may be much deeper than going through the motions of insulating and driving less, in which case many of us (me included) may not be as sustainable as we once thought.

A good way to spend this money sustainably with some benefit for yourself I might suggest is to buy second hand items with it - but then the ability to buy so much second hand stuff is a product of others' excessive consumption and maybe the second hand market indirectly feeds the new market? Is there actually any easy answer for an individual who still wishes to live a modern lifestyle? I'm not convinced there is, but I think it's something we're going to have to consider carefully soon enough. Right now however, I think we should do the green things as they promise some benefit for the environment and generally benefit the people who do them, then see where we end up and change again if needed. The whole thing is a big experiment and learning lesson for all of us.

Thanks for this post, this is also close to my thinking. There has been a lot of behind the scenes rows in politics "how to clean up and who pays" So they started rows on carbon tax - I am sure nobody wants to pay -, blamed each other the G20 on who has to reduce carbon emissions more etc... So politicians decided to start with small solutions. meanwhile population grows and emissions grow and we need to get energy from somewhere at last... Sure there must be energy solutions and renewables but got stuck on politics and lack of engineering expertise - that is what they tell us. This is one thread needs to start.

Definitely there are health implications for all users.

I cannot think that we are able to clean up and reduce carbon just by magic. Especially when we know we need a million homes produced asap in UK!!!

grizzly1911

Jennifer_Jane wrote: »

As for other spotlights - am still waiting for energy-saving bayonet R63 spotlights. Will have to change light-fitting eventually, if they don't plan to bring out bayonet energy-saving ones.

R63 are screw aren't they?

Tesco often have them at reasonable prices in CFL form, also the smaller R50s, we've got them.

They tend to appear like buses though loads of stock at times other times none..

saynotofastway

I've had various GU10 LED bulbs off ebay and every single one were a waste of money. Some were dud when they arrived, some blew up after very little use and the 60 LED ones failed in various ways (one blew out, most either outside or inside leds stopped working until eventually none of them worked).

I have 2 sets of 3 GU10s in my kitchen and 2 sets of 4 GU10s one at the bottom of stairs/hallway and one at the top.

Initially I bought 3 Philips GU10 LED bulbs from Homebase which were £15 each but had 15% off one weekend (20 year guarantee too) and I would say they are almost as bright as 50w Halogen bulbs. I then saw some GE LED bulbs at Tesco for £10 very similar design so bought another 3 to finish off the kitchen. As I was going through the checkout with the shopping I thought afterwards it was a bit cheap, checked the receipt and they were only £2.50 a bulb, needless to say I went in and bought another 10. They come with 15 years guarantee as well.

I have kept all receipts stored away for safe keeping just in case any fail but over a year later they are still going strong and at 4w a bulb i'm saving a fortune on lighting