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20cm large???

  • pepeMTB Sunday, April 15, 2018 12:45 AM Reply

    Hi!


    How long is this bulb??

    and of diameter? I mean wide.


    Thanks so much and greetings.

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  • sheepish Top 10 Forum Poster Sunday, April 15, 2018 7:14 AM Reply

    You don't believe the listed details, then?


    Dimensions
                       
                       
                           7.87 in x 3.94 in x 3.15 in (20 cm x 10 cm x 8 cm)
                       

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  • matrix-neo Moderator Sunday, April 15, 2018 2:50 PM Reply

    something funny about those numbers, it states the length should be twice as long as the width(diameter) i'm trying hard to squint at an angle here, and it's a cylinder, what is the 8cm?!

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  • sheepish Top 10 Forum Poster Sunday, April 15, 2018 3:05 PM Reply

    I suppose you don't believe the stated dimensions either?


    E27 is an Edison screw fitting which is 27 mm diameter. In relation to that the total diameter would be about 45 mm.


    Edit - it would mean a diameter of about 48 mm and a length/height of about 132 mm.

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    post edited by sheepish on 4/15/2018 at 3:08 PM
  • ozOzo Top 10 Forum Poster Sunday, April 15, 2018 7:07 PM Reply

    Aha- We have a new pixel counter!

    The DX practise of showing the diameter of circular items as 10 cm x 10 cm instead of just plain 10 cm Dia has always annoyed me but this one is even harder to swallow. This must be an elliptical base cylinder with the major and minor axis 10 cm and 8 cm X 20 cm... really big bulb!


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    post edited by ozOzo on 4/15/2018 at 7:10 PM
  • sheepish Top 10 Forum Poster Sunday, April 15, 2018 7:17 PM Reply

    You have no idea how hard it was to resist the temptation to add a mention that ozOzo would be along shortly to do a proper job of it. I didn't, so I'll laugh if DX decides that's the right size.

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  • ozOzo Top 10 Forum Poster Monday, April 16, 2018 4:11 PM Reply

    After 24 hours of intense research and pixel counting Sheepish, I come up with 50 mm diameter x 134 mm height but there are too many unknown factors involved here to guarantee that is even close to its actual size.

     

    I was able to establish that the 27 mm of an E27 bulb is in fact the major diameter of the Edison screw, (not the minor diameter or pitch diameter) but were you aware that the diameter of an American E27 is actually 26 mm? The standard European Edison screw is 27 mm and apparently they are usually interchangeable but who’s to say the Chinese don’t manufacture them at 26.5 mm? That could throw the calculation off by 3 or 4 pixels!


    Worldwide 4G bands list:
    http://en.wikipedia.org/
    wiki/List_of_LTE_networks
    Worldwide 3G bands list:
    https://en.wikipedia.org/
    wiki/List_of_UMTS_networks
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  • matrix-neo Moderator Monday, April 16, 2018 4:28 PM Reply

    3 or 4 pixels? ffttt! on my gi-normous 4k monitor screen that works out to about 1/20th of a mm, should be ok for your average E27 fixture,hey ozozo, do you want to double check it? i could ship you my second 4k monitor , but remember, if i use dx's shipping calculator the shipping estimate would mean my trusty hand calculator will run out of digits.....

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  • sheepish Top 10 Forum Poster Monday, April 16, 2018 7:00 PM Reply

    were you aware that the diameter of an American E27 is actually 26 mm?


    I was aware that Americans use E26... but that's not what you're asking. Are you saying they call it E27 anyway? Um... @gasbag11 any (cough) enlightenment for us?


    on my gi-normous 4k monitor screen


    Are you able to actually fit the new widescreen DX site design on your screen without horizontal scrolling?

    DX has found a new way to deceive customers:
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  • gasbag11 Top 10 Forum Poster Monday, April 16, 2018 10:39 PM Reply

    Sorry sheepish. I've always known them as Medium Base bulbs. Most places that sell bulbs list them that way too. 


    E26 is definitely the size used here though.

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