LED Bulbs: actual consumption and trials

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Christophe
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LED Bulbs: actual consumption and trials

by Christophe » 02/08/06, 14:48

I just measured the consumption of my LED bulbs and Fluocompactes with https://www.econologie.com/shop/wattmetr ... -p-20.html

The results are bad for led bulbs 2006: (brand Rishang Electronics so 100% Chinese as 99% of LED bulbs currently market) rather see:


1) Rishang Electronics Globe 60 Leds in E27 bought 22,90 € !!

Conso: 16,45 W !! Let 0,274W by LEDS !! The seller gave this bulb for 5,5 W !!! : Evil:

Overconsumption: 299%! Overconsumption by LED which theoretically is 0.06W = 457%

2) Rishang Electronics Spot 12 Leds in E27 bought 5,90 €!

Conso: 7,1 W !! Let 0,592W by LEDS !! The seller was giving this bulb for 4,4 W!

Overconsumption: 161%! Overconsumption by LED which theoretically is 0.06W = 457%

3) Rishang Electronics Spot 32 Led in PAR20 (there is only 11 functional after 10h of operation !!!!!) bought 14,90 €!

Conso: 11,85 W !! Either 1,077W by LEDS (ok there is 21 damn but where does the current flow?) !! The seller was giving this bulb for 3.96W! : Shock:

Overconsumption: 299%! Over-consumption by LEDs when 11 LEDs are functional = 1795%. Overconsumption by LED if 32 functional Leds = 617%

4) Rishang Electronics Spot 21 Leds in E14 bought 7,90 € !!!

Conso: 7,14 W !! Let 0,34W by LEDS !! The seller was giving this bulb for 3.96W !!!

Overconsumption: 180%! Overconsumption by LED which theoretically is 0.06W = 567%

I prepare a complete file on measurements made with photo support. I will complete it later with brightness measurements!

Where do these overconsumption come from? Surely integrated transformers of poor quality (which explains the strong heating of the caps) or bad LEDs?

If anyone could confirm or deny my measurements ...

In the meantime my conclusion is unanimous:

Flee the LEDS (at least Chinese) or so check their conso before believing in the savings you'll make because they do not exist quite the contrary for the same brightness Fluocompactes are much more powerful (file being created) !!

In any case perso I was well done ... and I will at least ask for the refund of the PAR20 ... but hey it was for Science huh : Cheesy:
Last edited by Christophe the 20 / 10 / 14, 23: 36, 8 edited once.
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by Christophe » 02/08/06, 15:17

Here are 2 photos of the tests above.

a) Rishang Electronics Spot 21 Leds in E14

Working :

Image
Conso:

Image

b) Rishang Electronics Spot 32 Led in PAR20
In operation (after about 10h):

Image
Conso:

Image

I specify that on the lamp that I used with this Spot PAR20 I use fluocompactes for years ... I want to believe that the breakdown of the LEDs comes from a voltage pb but the compact fluorescents are also very sensitive to variations of tension ... But all fluo have held ... until now ...
Last edited by Christophe the 02 / 08 / 06, 16: 06, 1 edited once.
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by Christophe » 02/08/06, 15:21

I also specify that on the boxes there is noted:

Power consumption = 0.06W * number of LEDs

We would find respectively:

1) 3.6 W
2) 0.72 W
3) 1.92 W
4) 1.26 W

I let you calculate overconsumption in these cases ... I am too disgusted!
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by Targol » 02/08/06, 15:24

Not only do you sacrifice your nights for us but you also invest your personal denniers for our culture.

But how far will your altruism go, Christophe? : Lol:

To be more serious (yes, if, sometimes, it happens to me :D ), I am amazed by the measured differences. They use the same calculations as for the conso cars, right? (see This thread)
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by Christophe » 02/08/06, 15:29

Targol wrote:But how far will your altruism go, Christophe? : Lol:


Uh to my grave ... must have some martyrs and vigilantes (not masked) to put a little order in this world of shit no? : Mrgreen: Jrigole of course ... (though) ...

ps for Delnoram (if you pass here) : did you start measuring your LED bulbs with your pm230? I hate to see if it's mine that are really nil or if this overcon is general on leds bulbs ...
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by Christophe » 02/08/06, 16:10

ps: I found my bill and the bulb that burned was a PAR20 and not a PAR30 I changed the subject.
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by delnoram » 02/08/06, 21:04

Well, a little thing already.
LED spots 12 AC needs a transformer ......... and the cos phi of a transformer apparently is not 1 but 0.5 from what I understand. (in alternative current I am not at the level, so if there is a specialist.)

220v spots are mounted with a capacitor whose impedance drops the voltage, and the still a tuc with the cos phi to see before drawing any conclusions


Image
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by Christophe » 02/08/06, 22:31

Would I be wrong? I will check this step!

Verification made:

1) 60 Led Globe.

Cos phi = 1,0
A = 0,07
W = 16,38W

2) G23 11W

Cos phi = 1,0
A = 0,16
W = 37,12W

The cos phi does not vary even with the G23 which has a transformer ...
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by delnoram » 02/08/06, 22:47

The problem is that it never varies, even with 1 simple transformer.
are you sure it can vary?
I will try with a drill!

waiting for that bed :D

http://energie.wallonie.be/energieplus/cogeneration/CDRom/analysefacture/theorie/thepuissactiveetreacti.htm#Puissance_active
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by Christophe » 02/08/06, 22:52

Of course it varies ... I plugged an amp and cold band on during the festival of the village ... It constantly varied from 0.4 to 0.6! (It's Electrabel who must not like :D )

I do not know if it's more amp or more the engine of the group that made it fall ... I think the amp had a significant influence (it's a lot of condo amp) ...

For the thank you link but already read :)
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