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EcoSmart 8W BR20 LED

EcoSmart 8W BR20 LED

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I have two of these lamps and decided to pry the cover off of one to have a look inside. I thought it was odd that one side has 7 chips and the other has 8.

2016-08-02_20_29_15.jpg 2016-07-30_13_02_08.jpg 2016-06-06_14_59_43.jpg 2016-01-30_23_52_05.jpg

Light Information

Light Information

Manufacturer:Lighting Science Group for EcoSmart
Model Reference:ECS BR20 50WE W27 120
Lamp
Lamp Type:LED
Base:E26
Shape/Finish:BR20
Electrical
Wattage:8
Voltage:120
Optical
Color Temperature:2700K
Physical/Production
Fabrication Date:2013

File information

File information

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Filename:2016-06-06_14_59_43.jpg
Album name:nicksfans / LED
Keywords:Lamps
File Size:412 KB
Date added:Jun 06, 2016
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Medved
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Jun 06, 2016 at 01:46 PM Author: Medved
Why not, if they need to fit somehow on the perimeter 15LED's and 2 fixing screws?
Are you able to redraw the exact arrangement (or measure the voltage between the feed points; be aware, the electronic may be connected to the mains without any isolation)?
I would expect all series (40..60V), 5s3p (14..20V) or 3s5p (8..12V)...

No more selfballasted c***

rjluna2
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Robert


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Jun 06, 2016 at 04:00 PM Author: rjluna2
The PCB seems to be dated 19th week of 2013

Pretty, please no more Chinese failure.

Globe Collector
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Jun 06, 2016 at 10:53 PM Author: Globe Collector
Remove one LED and see if it will start...if not, then they are all in series! The fact there is an odd number suggests this anyhow. There seems to be emerging a "sort of industry standard" of about 60v for diode strings in lighting prodicts and 4x15=60. (Each of these LED's has an approximate forward drop of about 3.8-4.0v which is slightly dependent on current. Here, by the looks of the chips, size of the board etc., I'd say they are running at about 100-150mA. Actually for 8w, each LED would be loaded to 8/15 watts or 533mW each, At 4v drop, that is 533/4 mA through the lot in series or 133mA.
It's really not very difficult to do these "back of the envelope" calculations of you are really curious enough!

Manufactured articles should be made to be used, not made to be sold!

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