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Thread: Energy saving compact flrocent bulbs

  1. #17

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    I can't find any bulbs which tell me the colour temperature [img]http://www.**********.com/iB_html/non-cgi/emoticons/sad.gif[/img] Even big websites that have every bulb imaginable don't seem to have such a thing as cool white. What kind of colour temperature does a bog standard CFL, the kind you see in supermarkets and DIY stores?
    Alexis Vallance, U.K.
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  2. #18

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    Quote (Alvin Meister @ Sep. 15 2003,9:22)
    I can't find any bulbs which tell me the colour temperature [img]http://www.**********.com/iB_html/non-cgi/emoticons/sad.gif[/img] Even big websites that have every bulb imaginable don't seem to have such a thing as cool white. What kind of colour temperature does a bog standard CFL, the kind you see in supermarkets and DIY stores?[/QUOTE]

    I think the bog standard bulbs are 2700 Kelvin.

    I agree, looking for technical details is a pig, but I looked around and found this out. I started at www.osram.co.uk, and was sent to this global site, and found some pages with the light temp details, for some CFL's for the UK (240 volts). I guess you should phone Osram with some product codes to try and find a local supplier.

    I just put in a link to that page with the tech details, but it will not work. Gives an error about an 'invalid session'. So I'll just cut n paste in the details. Sorry if this post is a bit long . . . [img]http://www.**********.com/iB_html/non-cgi/emoticons/sad.gif[/img]

    Go to http://catalog.myosram.com/

    click the links 'Lamps for General Lighting'

    then 'Compact Fluorescent Lamps'

    'Integrated Electronic Ballast '

    Then pick a shape you would like. I went with the

    'Single, double or triple turn ' link.

    At this point, just to double check, I went a got a box of regular light bulbs (from the cupboard), to make sure the code for the fitting was correct. (E14/B22d ) (These codes are for the UK)
    The page has a selection of links, condensed below. I've only pasted relevant details from some product codes.

    click ' Economy (6 years) 3 turns - Cap: E27/B22d '

    This is a link from the page. Its a 2700 Kelvin Bulb '4050300793153 ECONOMY 24W/827 220-240V E27 10X1 '

    Product details
    Product description ECONOMY 24W/827 220-240V E27 10X1
    EAN Shipping Unit 4050300793153
    Unit Shipping carton box (VS) contains 10 pieces (PCS)
    General Description
    Base E27
    Energy label A
    ILCOS FBT-24/27/1B-220/240-E27
    New product NEW
    Technical - Electrical Data
    Effective current intensity in mA 185 mA
    Rated volts Min. 220 V Max. 240 V
    Rated wattage in Watts 24 W
    Technical - Light Technical Data
    Luminous output in lumen 1500 lm
    Technical - Colours
    Colour appearance LUMILUX INTERNA
    Colour rendering group 1B
    Colour rendering index (Ra) Min. 80 Max. 89
    Colour temperature in Kelvin 2700 K


    This is another link from the previous page. Its a 6000 Kelvin 'Daylight' Bulb'
    '4050300793139 ECONOMY 24W/860 220-240V E27 10X1 '


    Product details
    Product description ECONOMY 24W/860 220-240V E27 10X1
    EAN Shipping Unit 4050300793139
    General Description
    Base E27
    Energy label A
    ILCOS FBT-24/60/1B-220/240-E27
    Rated volts Min. 220 V Max. 240 V
    Rated wattage in Watts 24 W
    Luminous output in lumen 1425 lm
    Technical - Colours
    Colour appearance LUMILUX INTERNA
    Colour rendering group 1B
    Colour rendering index (Ra) Min. 80 Max. 89
    Colour temperature in Kelvin 6000 K


    This is another link from the previous page. Its a 4000 Kelvin 'Cool White' Bulb'
    '4050300553092 ECONOMY 21W/840 220-240V E27 10X1 C '


    Product details
    Product description ECONOMY 21W/840 220-240V E27 10X1 C
    Base E27
    Energy label B
    ILCOS FBT-21/40/1B-220/240-E27
    Technical - Electrical Data
    Effective current intensity in mA 170 mA
    Rated volts Min. 220 V Max. 240 V
    Rated wattage in Watts 21 W
    Technical - Light Technical Data
    Luminous output in lumen 1200 lm
    Technical - Colours
    Colour appearance LUMILUX INTERNA
    Colour rendering group 1B
    Colour rendering index (Ra) Min. 80 Max. 89
    Colour temperature in Kelvin 4000 K


    These are just three examples of bulb's, in the three light temp's talked about in this thread. I'm not saying these are the best bulb's to choose, they're just the first ones I could find that can work for you. Take some time to look around the catalogue and you could find some improvement on those specs (I hope)

    Can someone else be bothered to see whether the 'Long life 12yr' or 'Economy 6yr' bulbs produce more Lumens per Watt (better for plants) or whether one bulb shape is 'brighter' than another? (e.g Single, double or triple turn vs Globe shape)
    It could be helpful, however I cannot be bothered, as I'm tired and it's late [img]http://www.**********.com/iB_html/non-cgi/emoticons/smile.gif[/img]

    Anyhow, I really hope this one helps,

    Jacko

  3. #19

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    Thanks very much, you've gone to a lot of effort there. I'll print it out and take it to a specialist lighting centre.

    I still don't know why they can't print colour temperature on the box though - surely you'd be a bit miffed if you just wanted a light for the front room and it turned out to be too red or too blue.

    Thanks [img]http://www.**********.com/iB_html/non-cgi/emoticons/smile.gif[/img]
    Alexis Vallance, U.K.
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  4. #20

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    The ones I've seen are generally warm white (2700) unless otherwise specified. I only saw a few though before I gave up scrounging for details and bought online. [img]http://www.**********.com/iB_html/non-cgi/emoticons/tounge.gif[/img]

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