Test of ignition cycle of led or compact fluorescent bulbs

[Christophe]

To follow up on this topic: https://www.econologie.com/forums/un-laborat ... t2661.html

I created this subject to talk about the "ON / OFF" test protocol on fluorescent, LED or classic bulbs ...

[Christophe]

Well I started to prepare the gear.

A question: which ON / OFF durations do you choose?

I hesitate between 3 cases:

A) 2 min ON 1 min OFF
16h a day ON
number of cycles per day: 480

B 3 mins ON 1 mins OFF
18h per day in ON
number of cycles per day: 360

C) 4 mins ON 1 mins OFF
19,2h per day in ON
number of cycles per day: 288


Case A seems a little too fast (some compact fluorescent lamps would not have time to heat up) ... but it is the one with the highest number of cycles (which interests us in this essay).

[delnoram]

B seems appropriate to me for the test.

[Christophe]

+1

[Christophe]

Well I have a concern ... after having read and reread 3 times the manual of the digital programmer it seems that what we want to do is not possible ... I tried to work around the problem in all directions following the programmer's possibilities:

1) There are 20 programs .... we can therefore make a maximum of 20 programs per day ...

2) The random function starts for a minimum duration of 30 minutes .... in addition the random is not great for the stats

3) The Countdown function is not automatically repeatable and only includes OFF OR ON ...


I dry there .... there is apparently no simple repetitive mechanical timer function (or else I haven't found it yet) ...

If kK1 has an idea ...
Otherwise I would use the mechanical timer (15 min ON / 15 min OFF) .... the test will simply take longer ... or else I buy 1 time relay ...

[nialabert]

It would take a small microcontroller to connect to relays. In addition we can easily count the number of cycles.

You have to find someone who has the skills.


There is more than ...

[delnoram]

IGNITION AND EXTINGUISHING RESISTANCE TEST

First test with a new Matsuka 5W compact fluorescent bulb
(except that it was used for the pretest of 600 on / off over 1 hour) given for 6000 hours of operation.

The cycle is as follows:
63 seconds per cycle divided into 6 seconds of ignition and 57 seconds of extinction.

The bulb dropped after 51 hours and 10 minutes (a few minutes) or 2924 on / off to which we can add at least some of the 600 of the pretest, round up to 3000.

The cause of the failure:
one of the 2 filaments gave way.
the electronic assembly is still in working order.

An ignition every 2 hours of operation seems to me very correct.

[delnoram]

IGNITION AND EXTINGUISHING RESISTANCE TEST

Second test with a new 11W Direct Energy compact fluorescent bulb, given for 6000 hours of operation.

The cycle is as follows: same as the previous one

The bulb dropped between 190h30mn and 191h00 ie around 10900 on / off

The cause of the failure: identical to the first.
one of the 2 filaments gave way.
the electronic assembly is still in working order.

One ignition every 33 minutes it's more than good

[Woodcutter]

Me it bothers me a bit anyway ...

I installed in the box where I work compact fluorescent to the toilets when the other bulbs farted.

Assuming that someone goes there every 10 minutes, that makes 6 * 10 = 60 ignitions / day, i.e. 60 * 220 = 1320 ignitions / year ...
Mwoué good it's not bad, it's been 8 years of operation in the best of cases ...

But only 2 years and a few in the worst ...

PS: when you talk about filament, what / where in a compact fluorescent?

[delnoram]

Me it bothers me a bit anyway ...

I installed in the box where I work compact fluorescent to the toilets when the other bulbs farted.

Assuming that someone goes there every 10 minutes, that makes 6 * 10 = 60 ignitions / day, i.e. 60 * 220 = 1320 ignitions / year ...
Mwoué good it's not bad, it's been 8 years of operation in the best of cases ...

But only 2 years and a few in the worst ...

PS: when you talk about filament, what / where in a compact fluorescent?

The filament ... uh the heating filaments are located at the base of the tubes, inside since they are there to preheat the gas and allow its ionization.

CFLs are not known to easily withstand frequent lighting, but as the 2 previous tests show, there are great disparities depending on the brands, but probably also depending on the bulbs themselves.
two tests do not prove much, except to give a first fork and given the gap between the 2 I had a bowl