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Please ensure your electrics are up to date!!!!!!!!! - Page 5

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Please ensure your electrics are up to date!!!!!!!!!

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  • ollykollyk Forumite
    597 posts
    ✭✭
    gromituk wrote:
    I'm not sure I can do that unless you expand on what you mean by "for home lighting" as you evidently don't mean what I guessed at in response to your last posting - absolute brightness. Do you mean beam pattern, colour temperature, or something?

    I mean Lumens per Watt actually used by the led oR Lumens per Watt of light output?
  • gromitukgromituk Forumite
    3.1K posts
    Actual light output.
    Time is an illusion - lunch time doubly so.
  • ollykollyk Forumite
    597 posts
    ✭✭
    gromituk wrote:
    Actual light output.

    means jack bud. I have to admit led tech has come on and looks like they *might* actually overtake halogens next year, assuming the site I just looked at is up to date, so I guess we are verging on a stalemate.... but I think I am right really :p;)
  • rosesroses Forumite
    2.3K posts
    ✭✭✭✭
    Well I had a full electric rewire done on my ancient victorian house last year. The guys that did the job, based in North London, did an absolutely fantastic job & were very cheap! I paid £4,000 in London for a full electric rewire which included extra sockets & lighting in the loft, replastering & working in an occupied house which meant putting everything in a working state at the end of each day. It was the cheapest quote out of 4 which I obtained.

    If anyone needs a recommendation then send me a pm :)
  • JamsykeJamsyke Forumite
    50 posts
    Part of the Furniture Combo Breaker
    ollyk wrote:
    Trouble with led's is that when lighting up your house, they are no more efficient than tungsten lamps, and less efficient than Halogen. It's getting their, and rapidly but Led tech has some way to go before it could be compared to flourescent lighting!

    Depends what you mean by efficiency, I would assume you mean the amount of energy they use.

    They are far more efficient than any other type of light bulb in this regard. The drawback is that the light output hasn't quite reached practical levels yet.

    When you say "less efficient than halogen" do you mean less bright than halogen?

    Also, for people worried about using cfl's with dimmers.... there are dimmable versions available, ask a specialist lighting company. I know Megaman do some. These will become readily available in the fullness of time, like everything else.
  • Important update! We have recently reviewed and updated our Forum Rules and FAQs. Please take the time to familiarise yourself with the latest version.
  • bocksterbockster Forumite
    448 posts
    i don't get all the confusion about efficiency???

    surely it should just be a comparison of watts consumed for a given amount of light output.

    you can argue about the colour or the characteristics of the light after
    Please note, we've had to remove your signature because it was sh*te!
  • ollykollyk Forumite
    597 posts
    ✭✭
    Jamsyke wrote:
    Depends what you mean by efficiency, I would assume you mean the amount of energy they use.

    They are far more efficient than any other type of light bulb in this regard. The drawback is that the light output hasn't quite reached practical levels yet.

    When you say "less efficient than halogen" do you mean less bright than halogen?

    Also, for people worried about using cfl's with dimmers.... there are dimmable versions available, ask a specialist lighting company. I know Megaman do some. These will become readily available in the fullness of time, like everything else.

    well, for one I acknoledged the fact that led's had come on a long way, and that there are examples now that are approaching that of compact flourescents, for efficiency of light output, although to my knowledge still have not exceeded compact flourescent lighting!
    And yes the last time I looked white led's were approx 19 lum/watt where as halogens approx 20 lums / watt.

    Also there are different ways of measuring the efficiency of light output that many people use different methods of presenting their data to suit their marketing strategy. A classic example is the above poster basing their assumptions on Lumens per Watt of light output - as used by the led manufacturers!
  • rygonrygon Forumite
    748 posts
    But talking about how bright they are has nothing to do with efficiency..just how bright they actually are!!!!!
    As bockster said efficiency is the ratio of input and output.
    Smile and be happy, things can usually get worse!
  • gromitukgromituk Forumite
    3.1K posts
    So, having just yourself used lumens/watt to justify your own assertion that fluorescents are more efficient than LEDs, what exactly do you base your assumptions about efficiency on then, ollyk?
    Time is an illusion - lunch time doubly so.
  • normannorman Forumite
    48 posts
    all super vg stuff BUT WATCH OUT FOR THE ELASTOPLAST nutters.....IE I once walked approx 300 yards from my back door to post a letter and almost at the mail box I saw a bloke trimming his front hedge with a vg hedge trimmer. I had lived in that street for 15 years but never met him so naturally stopped for a chat. There had been a little rain but conditions underfoot were passable and then I noticed he had, at one time cut through the cable at the point where it passed by his ankles AND REPAIRED IT WITH ELASTOPLAST. I did have a polite chat with the guy but could not persuade him that what he had done was wrong. He did admit that his appliance was not protected by any kind of circuit breaker.

    As I am on a TECHIE kind of thread, can anybody point me to where I may buy a rechargeable lantern that comes on automatically when there is a power cut? THANKS. I have looked all over the place.
    What goes around - comes around
    give lots and you will always recieve lots
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