Jetbeam        
Results 1 to 6 of 6

Thread: Sylvania Osram TruWave LED bulbs

  1. #1
    *Flashaholic* PhotonWrangler's Avatar
    Join Date
    Oct 2003
    Location
    In a handbasket
    Posts
    12,849

    Default Sylvania Osram TruWave LED bulbs

    I ran across these new LED bulbs from Sylvania in a local store the other day. The packaging was a little vague about it's benefits other than reducing blue glare and providing a higher CRI. I thought about buying one to try it out but they only came in packages of 2 or more so I changed my mind and decided to read about it first.

    They've published a lot of new-age marketing hype about these lamps, however I finally found a document that offered some actual details about their tech. They claim that their blue LEDs have multiple quantum wells to produce a more broadband blue as opposed to a narrow spike of blue. They also hinted at a special phosphor mix although they really didn't offer much detail about this. The spectral chart shows a pretty contiguous spectral content that falls off towards the red end of the spectrum, so not flat but not full of gaps either.

    Has anyone tried these? They're being offered in a 2700k version and a daylight version. I think they're claiming 90 CRI.

  2. #2
    Flashaholic*
    Join Date
    Dec 2003
    Location
    Indianapolis
    Posts
    883

    Default Re: Sylvania Osram TruWave LED bulbs

    This would be the Sylvania 'Natural Series' with 'Truwave Techmology'?

    Lots of marketing hype - no real technical white paper, that I could find. Still - looks promising, but with no 3000 or 3500 K offerings, I'm not likely to buy any.
    Last edited by brickbat; 08-31-2020 at 09:12 PM.
    Jim

  3. #3
    *Flashaholic* PhotonWrangler's Avatar
    Join Date
    Oct 2003
    Location
    In a handbasket
    Posts
    12,849

    Default Re: Sylvania Osram TruWave LED bulbs

    It took some digging but I found this pdf from Sylvania that goes into a little bit of detail about the spectral distribution. I couldn't find anything on the multiple-quantum-well LEDs though.

  4. #4
    Flashaholic* LEDAdd1ct's Avatar
    Join Date
    Jul 2007
    Location
    Hudson Valley
    Posts
    3,541

    Default Re: Sylvania Osram TruWave LED bulbs

    I developed a multiple-quantum well time machine; it has a bug though, and just repeats text whenever I turn it ON.
    I developed a multiple-quantum well time machine; it has a bug though, and just repeats text whenever I turn it ON.
    I developed a multiple-quantum well time machine; it has a bug though, and just repeats text whenever I turn it ON.
    I developed a multiple-quantum well time machine; it has a bug though, and just repeats text whenever I turn it ON.
    I developed a multiple-quantum well time machine; it has a bug though, and just repeats text whenever I turn it ON.

    :-)

  5. #5
    *Flashaholic* PhotonWrangler's Avatar
    Join Date
    Oct 2003
    Location
    In a handbasket
    Posts
    12,849

    Default Re: Sylvania Osram TruWave LED bulbs

    Quote Originally Posted by LEDAdd1ct View Post
    I developed a multiple-quantum well time machine; it has a bug though, and just repeats text whenever I turn it ON.
    I developed a multiple-quantum well time machine; it has a bug though, and just repeats text whenever I turn it ON.
    I developed a multiple-quantum well time machine; it has a bug though, and just repeats text whenever I turn it ON.
    I developed a multiple-quantum well time machine; it has a bug though, and just repeats text whenever I turn it ON.
    I developed a multiple-quantum well time machine; it has a bug though, and just repeats text whenever I turn it ON.

    :-)

    Lol. I think your flux capacitor is leaking fluid.

  6. #6
    *Flashaholic* PhotonWrangler's Avatar
    Join Date
    Oct 2003
    Location
    In a handbasket
    Posts
    12,849

    Default Re: Sylvania Osram TruWave LED bulbs

    I spotted a single-unit package in the store topday so I picked one up out of curiosity. It's the filament-LED design with a clear bulb.

    Looking at the filament pieces, it appears that one side of each filament has a cooler-white phosphor (yellowish when off) and the other side has a slightly more orange phosphor coating. This is visible when the bulb is lit also. Each filament piece looks like a neutral/warm white sandwich.

    My first impressions of the light are that it's ok, although not a wow. I haven't compared it to anything else yet in terms of color rendering.

Posting Permissions

  • You may not post new threads
  • You may not post replies
  • You may not post attachments
  • You may not edit your posts
  •