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Thread: LED high bay retrofit lamps

  1. #11
    Join Date
    Nov 2014
    Location
    Parker CO
    Posts
    19
    Im glad u posted this, last November I changed out 20 4 pin fluorescent can lights to Light Efficients Designs ballast AND line voltage compatible LED lamps. Their engineer said they should work with most of the lamps. After 4 months 40% failed so i went back and bypassed the ballast and wired with 120 line voltage. 3 months later 4 more.. and now 3 more.
    Going forward I will bypass the ballast and not use the "retro-fit ballast friendly" wiring method bc it is apparently not so friendly. I have used them also in 2 different parking lot lights which I did bypass the ballast and those fortunately have not stopped working.
    I did wonder about "quality" bc in the original 20 there are only a few left which sound like their are a ticking time bomb.
    The company has been very good at sending out replacement tho.
    And you can reach their designer/engineer anytime during the day for troubleshooting help which is a big plus. But i would be open to any other reputable alternatives as I cannot afford these trip shares to replace defective items, so hare if anyone has any options. I did buy thru my supply house who has been using them for a several years

  2. #12
    Join Date
    Jun 2003
    Location
    Hawthorne, New York NEC: 2014
    Posts
    3,970
    About a month ago I get a request from a homeowner who changed out the lamps in his ceiling cans from R40 incandescent to LEDs from HD. They were on a dimmer and what was there wouldn't allow the LEDs to turn completely off so he goes back to HD and gets a Lutron Diva 3-way dimmer. The original dimmer was a master/remote set up and he couldn't figure out how to wire the Diva that uses the traditional 3-way configuration and a regular 3-way switch. So I make the wiring changes in the boxes and all is working fine.

    About a week ago I get a call from the customer saying that his wife came home, went to turn the lights on from the 3-way, saw a flash through the Decora rocker and the breaker tripped. After resetting the breaker all is working as usual.

    Now, keep in mind that this is the customer's story and I haven't confirmed any of it other than asking if all the lamps worked (they did) and if the dimmer still worked (he didn't try it). I did tell him, if it was me I would change the LED lamps out, I can't see anything else that would cause that kind of thing.

    -Hal

  3. #13
    Join Date
    May 2005
    Location
    Richmond, Virginia
    Posts
    23,667
    Quote Originally Posted by hbiss View Post
    About a week ago I get a call from the customer saying that his wife came home, went to turn the lights on from the 3-way, saw a flash through the Decora rocker and the breaker tripped. After resetting the breaker all is working as usual.
    Sounds like a poorly-stuffed switch box. Ground wire hit a traveler.
    Code references based on 2005 NEC
    Larry B. Fine
    Master Electrician
    Electrical Contractor
    Richmond, VA

  4. #14
    Join Date
    Jun 2003
    Location
    Hawthorne, New York NEC: 2014
    Posts
    3,970
    No. He did say that he removed the 3-way and found no evidence of arcing. Besides, I installed that switch and I can guarantee you that the ground was no where near the screws. Dimmer at the other end has pigtails.

    -Hal

  5. #15
    Join Date
    Dec 2012
    Location
    Placerville, CA, USA
    Posts
    19,736
    Quote Originally Posted by hbiss View Post
    No. He did say that he removed the 3-way and found no evidence of arcing. Besides, I installed that switch and I can guarantee you that the ground was no where near the screws. Dimmer at the other end has pigtails.

    -Hal
    With some switch designs a bright contact-closing or contact-opening flash inside the switch can be seen through the white/ivory plastic of the switch level or the Decora rocker.

  6. #16
    Join Date
    Sep 2016
    Location
    Longmont, CO
    Posts
    185
    Thanks to those who replied with helpful comments and experience. The lamps that failed are being replaced under warranty, we'll see how the new ones last. In the meantime, I purchased replacements and the current cost is about 25% of what they were a year ago.

  7. #17
    Join Date
    Jun 2003
    Location
    Hawthorne, New York NEC: 2014
    Posts
    3,970
    Quote Originally Posted by GoldDigger View Post
    With some switch designs a bright contact-closing or contact-opening flash inside the switch can be seen through the white/ivory plastic of the switch level or the Decora rocker.
    Again, going from the customer's description, that's what I told him. Since the breaker tripped I have to assume it was a dead short someplace which really would have produced a flash. After the breaker was reset everything worked normally I was told. I asked him to check if the dimmer still worked since I remember incandescent lamps can sometimes fail where the filament falls across the supports and creates a short that takes the dimmer out. The dimmer usually fails fully on and won't respond to dimming. So at least if that happened you could point a finger at a LED lamp, but he never got back to me.

    -Hal

  8. #18
    Join Date
    May 2005
    Location
    Richmond, Virginia
    Posts
    23,667
    I would also check for proper 3-way switching from both the dimmer and the switch, just to make sure there is no fault on one traveler.
    Code references based on 2005 NEC
    Larry B. Fine
    Master Electrician
    Electrical Contractor
    Richmond, VA

  9. #19
    Join Date
    Jan 2011
    Location
    United States
    Posts
    8,094
    Quote Originally Posted by Jim1959 View Post
    Think what you want, they came from one of the nations larger electrical distributors, I'm just looking for some shared experience, something of value. Thank you for your effort.
    Which means nothing- bad products are sold everywhere. What you describe are basically over driven over heated LEDs. Your not the only one. I bought a bunch of LED X filament bulbs, 20,000 hour average life. Half of them started flickering and then failing to light at 1000 hours.
    I'm in over my head...

  10. #20
    Join Date
    Jun 2003
    Location
    Hawthorne, New York NEC: 2014
    Posts
    3,970
    Quote Originally Posted by LarryFine View Post
    I would also check for proper 3-way switching from both the dimmer and the switch, just to make sure there is no fault on one traveler.
    After I wired the 3-way I checked each traveler at the dimmer end with a test lamp by operating the 3-way to see that I had it right. Feed is at the 3-way end.

    You have a good point however because the old dimmer setup used one of the travelers from the remote (now 3-way location) as a hot back to the dimmer, the other traveler was the control from the remote back to the dimmer. This was installed originally when the addition was done and it operated without indecent for 20 years. Not sure what would happen if there was a high resistance fault to ground on the control conductor and possibly applying full line voltage on a damaged conductor caused it to fault.

    Interesting problem with little to go on.

    -Hal

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