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Thread: LED high bay retrofit lamps

  1. #1
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    LED high bay retrofit lamps

    Name:  LED retrofit.jpg
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Size:  139.3 KBWe "upgraded" a dozen of our 400 watt metal halide high bay lights in our shop with LED retrofit lamps where you remove the ballast and extend the line voltage to the mogul base lamp socket. After about a year, they are failing, some flicker, all are becoming dim and changing to a yellowish color. I was surprised at this happening, and wondered if others had similar experiences. The lights are fed with 208 volts, and the lamps are rated 120 - 277 volts. I had inquired if the 208 volt supply was appropriate, and my supplier stated that they should operate normally. Any thoughts or experiences to share?


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    Yes, I think you bought generic garbage online and now it's coming back to bite you.

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    Quote Originally Posted by peter d View Post
    Yes, I think you bought generic garbage online and now it's coming back to bite you.
    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.

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    Answer is obvious, they are failing. Voltage is appropriate. I would see if you could get some kind of refund or replacement credit from the manufacturer or distributor. If these were regular lamps you would throw them away and replace them thinking better luck next time, but these things are a bit more expensive. With LED lighting it's looking like it's almost the luck of the draw .

    -Hal

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    If they are not cheap junk, perhaps an application problem? What kind of temperature is at the light fixtures? Are LED replacements of this type sensitive to lamp position?
    Electricians do it until it Hertz!

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    The electricians were I work have retrofitted all our HPS wall packs with Light Efficient Design (LED, clever) corn cob lamps. Quite a few have failed, one building, 3 out of 4.
    Are those retrofits design lights consortium approved?
    I would be more inclined to go with Lithonia, Hubble, ect. Most of the issues with LED products are the power supplies. The LED itself is a solid state device..
    Moderator-Washington State
    Ancora Imparo

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    Cheap drivers
    Heatsinks too small
    Cheap plastic lens
    Wrong application
    Look up the USA brand Ephesus

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    Quote Originally Posted by tom baker View Post
    The electricians were I work have retrofitted all our HPS wall packs with Light Efficient Design (LED, clever) corn cob lamps. Quite a few have failed, one building, 3 out of 4.
    Are those retrofits design lights consortium approved?
    I would be more inclined to go with Lithonia, Hubble, ect. Most of the issues with LED products are the power supplies. The LED itself is a solid state device..
    On the other hand many LEDs use blue or UV emitters with phosphors. Either the emitters or the phosphors can deteriorate.

    Sent from my XT1585 using Tapatalk

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    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.
    I stand corrected, you bought generic garbage from a wholesale distributor.

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    Quote Originally Posted by peter d View Post
    I stand corrected, you bought generic garbage from a wholesale distributor.
    Don’t forget - there is also name brand garbage.

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