User Tag List

Informational! Informational!:  0
Likes Likes:  0
Page 1 of 8 12345 ... LastLast
Results 1 to 8 of 58

Thread: Philips GreenPower LED flowering lamp trial

  1. #1
    Av8tor1's Avatar
    Join Date
    Jan 2007
    Posts
    4,811
    Mentioned
    6 Post(s)
    Tagged
    0 Thread(s)

    Lightbulb Philips GreenPower LED flowering lamp trial

    Not any type of endorsement... just results, ymmv


    Light Details: http://www.hortamericas.com/images/s...1-lr-uk_LR.pdf
    Spectrum: DR/W/FR
    Distance to plant: 15"
    Photoperiod: 18/6
    Test subject: Typical ping
    Note: Sole source of lighting

    One week:


    Operating temps:


    Observations:
    Wide angle and highly diffused with no diffraction, lighting appears relatively natural.
    Definitely follow the factory recommendation about open air mounting.

    Av

  2. #2

    Join Date
    Oct 2008
    Location
    Saginaw, TX USA
    Posts
    1,567
    Mentioned
    6 Post(s)
    Tagged
    0 Thread(s)
    This should be interesting, thanks for running this test.

    Hopefully this will help with the myth that LEDs don't produce much heat

  3. #3
    BANNED
    Join Date
    Aug 2011
    Location
    Cascadia Subduction Zone
    Posts
    2,113
    Mentioned
    2 Post(s)
    Tagged
    0 Thread(s)
    Thanks for doing this, Jim. I considered trying one out, but would prefer to see how your trial goes first.

  4. #4
    Av8tor1's Avatar
    Join Date
    Jan 2007
    Posts
    4,811
    Mentioned
    6 Post(s)
    Tagged
    0 Thread(s)
    The 141.5F was measured about half way up the heatsink.
    Ambient temps were approx. 72F at time of measurement
    Last edited by Av8tor1; 07-23-2014 at 08:34 AM.

  5. #5
    PsychoSarah's Avatar
    Join Date
    Feb 2014
    Posts
    667
    Mentioned
    1 Post(s)
    Tagged
    0 Thread(s)
    Wow, that is pretty hot to touch
    Come to me flies and crawling bugs. This plant wants to give you great big hugs
    Aren't I pretty, don't I smell good? I'd come to you if I could
    But I can't so you must come to me, I'm sure we will get along splendidly

  6. #6
    pmatil's Avatar
    Join Date
    Apr 2011
    Location
    Finland
    Posts
    251
    Mentioned
    1 Post(s)
    Tagged
    0 Thread(s)
    Cooling of these led lights is always undersized. I would rig a fan to cool off the heatsink. Extends the lifetime of the lamp, too.
    Looking for N. Campanulata hybrids. Also would like to grow some nepenthes from seed. Growlist/pic thread: http://www.terraforums.com/forums/sh...-Pete-s-plants

  7. #7
    Av8tor1's Avatar
    Join Date
    Jan 2007
    Posts
    4,811
    Mentioned
    6 Post(s)
    Tagged
    0 Thread(s)


    8.13.2014


    Ping growth, one month
    Red arrow indicates reference leaf
    Draw your own conclusions... ;-)
    Think I will swap plants out this week,

    Note: The dead material and APS do not appear so pink to the eye, they appear "normal".
    I believe my cell phone camera is sensitive to the far red LED.
    Last edited by Av8tor1; 08-16-2014 at 11:35 AM.

  8. #8
    Hello, I must be going... Not a Number's Avatar
    Join Date
    Nov 2006
    Location
    Los Angeles, CA
    Posts
    7,506
    Mentioned
    5 Post(s)
    Tagged
    0 Thread(s)
    Do you have a "control" plant growing under "typical" lighting to compare it against?
    Grand Hotel... always the same. People come, people go. Nothing ever happens.

Page 1 of 8 12345 ... LastLast

Tags for this Thread

Posting Permissions

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