Compact fluorescent light bulbs: actual consumption and tests

[Christophe]

Well it is interesting this test, but after it would be necessary to measure the luminous intensity obtained, because if compared to the announced power CA consumes 10% less but illuminates 20% less, the gain of 10% is not really interesting.

This test is planned and will be done as soon as I find a Luxmetre ... Except at conrad you have addresses / advice? (I want kkchoz that makes luxmeter for more reliability)

With regard to halogens, I had understood that the Watt / Luminous Intensity efficiency was more advantageous with the halogen than with a conventional bulb. Once again someone will be able to do tests with the Wattmetre and a light intensity sensor, the results will be very interesting.

Actually there is a very slight advantage (+ 7%) for the halo: https://www.econologie.com/ampoules-a-ec ... s-552.html but it also depends on the quality of manufacture ...

By cons on the hallo I can not try ... I have no and I do not buy it ...

[Christophe]

Overconsumption coefficient: 42,18 / 11 = 3,835 [/ color]

Thank you, so you confirmed (worse) what I could see ...

[delnoram]

As you must know about electronic components, there is a range of operation (very known for the processors that are tested and sorted according to their capacity, the dream of the overclocker is to have a high-performance CPU classified below ).

the bulbs should not escape except that, if they consume less they may light also less.

this is the 2eme phase of the test: the brightness.

I have already started but I have to set some details before going further.

[Christophe]

Ok for tolerance but still surprising that it does not go in the "same sense" ... Finally you still have 3 who are more greedy ...

But you're right without testing the brightness it means (almost) nothing ... it would be nice to do the tests with a protocol more or less common. (assuming our lux meter is calibrated in the same way ... not at all obvious)

Delnoram, do you have a black room at home? If yes I propose that we put each bulb in a base without fixture and that is measured vertically of the bulb at one or more distance to be defined.

Idea: learn about the "official" methods (if they exist) of brightness test.

[delnoram]

my "workshop" is in an old hayrack so at night I can have a black more than correct.

but the light bulbs are long to heat

1er incomplete test


Matsuoka 5w 4.6w
Matsuoka 8w 6.8w
Electris (red) 15w 12.6w 30lux (made in the same conditions
Attralux 14w 15w but in less than 10 minutes
Direct Energy 11w 11.5w 18lux for 3 )
PT 15w 9.3w 14lux
Astrell 11w 13.9w
????? 3w 2.3w

[Christophe]

Measured how lux?

In your black box ????

[delnoram]

not too small

in the workshop in the dark and in indirect light

[I Citro]

I have not seen the mains voltage values ​​on Cristophe's measurements ...

Maybe its mains voltage is very high and like P = UI (cos phi)
I being defined by the impedance or resistance of the bulb.
If U increases to 240V and more, P will increase accordingly, right?
The old bulbs were planned for 220v.

At home I turned the incandescent bulbs because they roasted all 6 months or more often. Even at equal conso, my Chinese fluocompact 2 € room are already amortized after 2 years.

[Christophe]

not too small

in the workshop in the dark and in indirect light

That's what I thought .... how many meters from the bulb?

[delnoram]

1 diagonally, 30cm behind the luxmetre