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Lights of America LED Flood Light burned out

Lights of America LED Flood Light burned out


As the saga continued until today that I notice this flood light no longer shine. I removed the bulb and lo and behold, one of the LED burned out causing the entire set of LED no longer shines. You can see at the picture that one of the LED has a brown spot.

Same bulb I used that I posted at Lights of America LED Flood light .

PA090385.JPG PB210279.JPG PB070273.JPG P9260264.JPG

Light Information

Light Information

Manufacturer:Lights of America
Model Reference:2002LEDR30-65K
Lamp
Lamp Type:Clear Flood
Base:(Medium) (one-inch) Edison Screw (E26)
Shape/Finish:R30
Fixture
Ballast Type:Electronic Integral
Electrical
Wattage:3.5 Watts
Voltage:120 VAC, 60 Hz
Current:74 mA
Optical
Lumen Output:45 Watts equivalent
Color Temperature:6500K
Physical/Production
Fabrication Date:(038) on box

File information

File information

Download: Download this File
Filename:PB070273.JPG
Album name:rjluna2 / Burned Out Bulbs
Keywords:Lamps
File Size:160 KB
Date added:Nov 07, 2009
Dimensions:640 x 480 pixels
Displayed:751 times
Date Time:2009:11:07 14:03:54
DateTime Original:2009:11:07 14:03:54
Exposure Bias:0 EV
Exposure Time:1/30 sec
FNumber:f 3.1
Flash:Flash, Auto-Mode
Focal length:6.3 mm
ISO:125
Make:OLYMPUS IMAGING CORP.
Model:FE210,X775
Software:1.0
White Balance:0
URL:https://www.lighting-gallery.net/gallery/displayimage.php?pos=-39392
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Comments
Medved
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Nov 07, 2009 at 02:40 PM Author: Medved
Most of these creations suffer from poor heat management and furthermore have overpowered LED's. No wonder it fail soon...

No more selfballasted c***

dor123
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Aug 03, 2011 at 06:40 AM Author: dor123
The LEDs in this LED lamp aren't HPLEDs, but regular through holes LEDs, so heat management isn't required here.
I think that the LEDs in this lamp are of very poor building quality, as sudden failure of LEDs isn't a standard EOL mechanism of LEDs, even for an overheated LEDs, but a premature failure that results because of manufacturing errors.

I"m don't speak English well, and rely on online translating to write in this site.
Please forgive me if my choice of my words looks like offensive, while that isn't my intention.

I only working with the European date format (dd.mm.yyyy).

I lives in Israel, which is a 230-240V, 50hz country.

Ash
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Aug 03, 2011 at 11:44 AM Author: Ash
Every electronic circuit needs heat management. It may not be noticed on simple low component count circuits, but is an issue when a lot of small low power components are stuck tightly together as here

Standard 5mm LEDs are rated around 20mA, but it is very optimistic rating - assuming the LED is alone in a well cooled location . . . In a floodlight like that it's overdriven at 20mA, and maybe it had higher current there

Also what is the brown color all on the bottom ? Maybe the ballast failed (PWM transistor / mosfet shorted out) and overdrive the LEDs
rjluna2
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Robert


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Aug 03, 2011 at 12:52 PM Author: rjluna2
I am not sure. The brown spot at the reflector area must have been embedded when one of the LED failed, probably blew a smoke out inside the envelope

I didn't actually see the EOL of the light, I just discovered one day that is not burning when I turned it on.

Pretty, please no more Chinese failure.

Ash
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Aug 03, 2011 at 03:04 PM Author: Ash
You can still repair it, rework it for extra low voltage use (battery powered) by breaking up the huge series circuit to few segments, use it as a source for LEDs for other uses etc

Look if the blown LED has what looks like a bubble that blew from the junction, and if any other LED has such bubble (it is usually clear not brown), if yes then it means severe overpowering from ballast failure

Assuming one big series circuit and standard 3V 20mA white LEDs, If the ballast is ok then you can try to replace the LED or stick a 150-180ohm 1/8W resistor in place of the bad LED and try to light it up (you could probably just short the bad LED, but it'll overdrive the others like in xmas set and more severe)
TL8W
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Feb 21, 2012 at 11:57 AM Author: TL8W
Or you could replace it with an A-shape incandescent lol. How many hours was it guaranteed for?

We do not have to agree on anything to be kind to one another. The ability to be civil is available to everyone on earth, for free.

rjluna2
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Feb 25, 2012 at 06:25 PM Author: rjluna2
According to the box, it has limited warranty of 2 years free defect from worksmanshop. But, I guess it is way past from my last bulb replacement

Pretty, please no more Chinese failure.

SOX55W
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120V 60Hz here!


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Feb 26, 2012 at 12:52 AM Author: SOX55W
I hope this happens to some of those tree hugging, lighting regulation types. "so how's that $40 planet saving led working out for ya?"

It seems that the heat aspect is too often overlooked. These 40W inground pool lights from the pool at the rec center I work at were an engineering disaster! If they weren't killed by water ingress, they died a slow painful death overheating. Something about $300 of forced cooled highly heat sensitive devices being run in sealed confined spaces. Now I have 6 great torroid transformers and fans for projects, and they went back to $5 incandescents. I do have one working one that had just a water damaged rectifier early on in its life that was an easy fix. It makes a great work light.

Bring SOX lamps back!!!

FYI, LED's are NOT the most efficient lighting technology available! Don't know how people keep coming to that conclusion!

My other interests: sports cars, refrigeration, microcontroller projects, computer hardware, and any sort of custom fabrication.

toomanybulbs
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Apr 12, 2019 at 07:22 AM Author: toomanybulbs
oh surprise!
a lights of china FAIL!
if it was mine i would tear it apart and replace the leds with the high cri ones i have that were made for photographic lighting.
a cluster of those similar in count makes a real nice flashlight but would still be seriously lacking as a flood replacement.
rjluna2
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Apr 12, 2019 at 10:17 AM Author: rjluna2
Yup, before this death here it was not throwing much light shadow here.

Pretty, please no more Chinese failure.

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Martin Lelle resr1286
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Apr 12, 2019 at 01:07 PM Author: ResR
To get as much light output these LED are often overdriven no matter what the package is.

http://www.lighting-gallery.net/gallery/index.php?cat=11837

Ash
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Apr 12, 2019 at 01:47 PM Author: Ash
We are 10 years now since the picture was uploaded, and the quality have not changed all that much
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