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Thread: CFL/LED Equivalent Wattage to socket wattage rating question.

  1. #31
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    Quote Originally Posted by K8MHZ View Post
    I wonder what the problem is with just rating light bulbs with lumens of ouput and watts of input.
    Because people equate watts with brightness, and don't recognize lumens.
    Code references based on 2005 NEC
    Larry B. Fine
    Master Electrician
    Electrical Contractor
    Richmond, VA

  2. #32
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    Most bulbs do have their lumen output on the label these days. Unfortunately, "equivalent watts" [sic] is given a more-prominent position.
    I do make a point of asking for light bulbs by their lumen output when an employee offers to help me make a selection. Unfortunately, even people working in the lighting aisle usually aren't familiar with lumens.

  3. #33
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    Quote Originally Posted by LarryFine View Post
    Because people equate watts with brightness, and don't recognize lumens.
    Marketing is powerful. That is all I know since that is all they tell us on the box since Edison days.

    Now, with LED, its the color I look for. 2700 K by 78 LED at three watts is above my head right now.

  4. #34
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    Quote Originally Posted by LarryFine View Post
    Because people equate watts with brightness, and don't recognize lumens.
    I forgot we live in a country that takes so long to adopt the metric system we have to do it slowly and gradually. That's why we have wheel diameter in inches and tire width in mm, all on the same tire.

    And why people still say they have both 110 and 220 in their garages, where they park their cars.
    Cheers and Stay Safe,

    Marky the Sparky

  5. #35
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    Quote Originally Posted by Gary11734 View Post
    Marketing is powerful. That is all I know since that is all they tell us on the box since Edison days.

    Now, with LED, its the color I look for. 2700 K by 78 LED at three watts is above my head right now.
    http://www.westinghouselighting.com/...mperature.aspx

  6. #36
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    Yes, thanks for the brochure. It took me a while to figure out the colors...

    One of the reasons I stayed with halogen is it's warmer feeling. Now they have the 2700K, which is closer to a warm white.

  7. #37
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    190113-0634 EST

    On thermal problems:

    See my posts #10 and #11 at
    https://forums.mikeholt.com/showthre...+a+can+fixture

    .

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