Skip to main content

View Diary: UPDATE x3: LED Lightbulbs Finally Ready for Prime Time! (282 comments)

Comment Preferences

  •  They gave K ratings back then... (2+ / 0-)
    Recommended by:
    radical simplicity, Bronx59

    but they were still highly chromatic, leading to wierd effects on colored items. (I have one that purports to be 2800K, and it's still a crappy light to read under -- the poor color spectrum makes it hard to focus.)

    LED lamps really are much better now. There's a color rendering index, which is rather different than a correlated color temperature (CCT, which is what the K number is). I can't cough up any evidence to prove it, but dollars to donuts this that has improved a lot. CRI is still not a good scale, but it's at least an attempt to measure an important quantity.

    http://en.wikipedia.org/...

Subscribe or Donate to support Daily Kos.

Click here for the mobile view of the site