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energy saving lightbulbs

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do energy saving lightbulbs really save you money on your bills?
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  • Biggles
    Biggles Posts: 8,209 Forumite
    1,000 Posts Combo Breaker
    If not, they'll have to change the name......
  • Poppycat
    Poppycat Posts: 19,913 Forumite
    Part of the Furniture 10,000 Posts Combo Breaker
    Yes in the long term they do as they consume less energy and thus this will reflect in your energy bills, I think it tends to be round £5-£7 per bulb which would depend on the room and usage.
  • pegginout
    pegginout Posts: 993 Forumite
    Part of the Furniture 500 Posts Combo Breaker
    I moved into my house 8 years ago, and bought energy saving lightbulbs for every room.
    I have never had to change a lightbulb yet!:j
    :money: Martin Lewis Rocks!:money:
  • Hi,

    yes they will save you money, plus they last longer, and they are getting even cheaper now, less than £1.
  • molerat
    molerat Posts: 34,492 Forumite
    Part of the Furniture 10,000 Posts Name Dropper Photogenic
    moonrakerz wrote: »
    If you compare the costs of running a light for 8000 hrs (life of energy saving bulb):

    Energy saving light bulb 20W (same light as 100W conventional)

    20W X 8000 = 160000W = 160kWh @ 10p =£16
    plus cost of bulb £1.00: TOTAL COST = £17

    Conventional 100W light bulb

    100W X 8000 = 800000W = 800kWh @ 10p =£80
    plus cost of 8 bulbs @ 20p each = £1.60: TOTAL COST = £16.20

    Two slight disadvantages with low energy:
    1. They take a couple of minutes to get to full brilliance;
    2. Most types cannot be used with dimmer switches

    Don't worry about switching your TV off "standby" - change the light bulbs !

    I think you need to re-do your sums :D
  • moonrakerz
    moonrakerz Posts: 8,650 Forumite
    Part of the Furniture 1,000 Posts Combo Breaker
    If you compare the costs of running a light for 8000 hrs (life of energy saving bulb):

    Energy saving light bulb 20W (same light as 100W conventional)

    20W X 8000 = 160000W = 160kWh @ 10p =£16
    plus cost of bulb £1.00: TOTAL COST = £17

    Conventional 100W light bulb

    100W X 8000 = 800000W = 800kWh @ 10p =£80
    plus cost of 8 bulbs @ 20p each = £1.60: TOTAL COST = £81.60.

    Two slight disadvantages with low energy:
    1. They take a couple of minutes to get to full brilliance;
    2. Most types cannot be used with dimmer switches

    Don't worry about switching your TV off "standby" - change the light bulbs !

    (Too early in the morning - cheers Molerat !)
  • dreams_R_free
    dreams_R_free Posts: 536 Forumite
    I heard someone giving money-saving advice on the radio recently (no, not Martin:rotfl: ) and he said don't use them for areas which are switched on regularly for just a few seconds/minutes(such as hallways etc) as they cost even more than normal bulbs(:confused: ) in the early stages powering-up so would be a waste of money. Also. lots of switching on/off shortens the life of the bulb so not much gain there either.

    I'm not sure I understand it myself:o but that's what was said and why I didn't buy any for some of our fittings,
  • LilMissEmmylou
    LilMissEmmylou Posts: 1,721 Forumite
    i have to say i love them for when u wake up in the middle of the night and need a wee, those few secs it takes it to warm up means it doesnt hurt ur eyes when u turn the light on in the hall :)
  • Morrison's supermarket are currently selling Phillips energy saving light bulbs for 39p each 11 and 18 watt. They are the neat little ones, but you must get there quick after a delivery as the baton fittings sell like hot cakes leaving only the screw fittings
  • Poppycat
    Poppycat Posts: 19,913 Forumite
    Part of the Furniture 10,000 Posts Combo Breaker
    Yes they do use a lot more power when starting up so I hear but is only for a very short period, and your more likely to have the bulb on for more than a few secs for a hallway, many households seem to have hallway light and particularly landing on for hours on end even through the night
    Impomdasp wrote: »
    I heard someone giving money-saving advice on the radio recently (no, not Martin:rotfl: ) and he said don't use them for areas which are switched on regularly for just a few seconds/minutes(such as hallways etc) as they cost even more than normal bulbs(:confused: ) in the early stages powering-up so would be a waste of money. Also. lots of switching on/off shortens the life of the bulb so not much gain there either.

    I'm not sure I understand it myself:o but that's what was said and why I didn't buy any for some of our fittings,
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