Disconnecting CFL bulb from powered circuit can cause damage

>"The fan is not for cooling. It is a mosquito trap and the fan sucks mosquitoes attracted by a chemical compound, heat and UV light. The fan must not stop or the mosquitoes will escape. "

When it STARTED to run with a blown bulb what happened ? It ran. So it should run again. However, if it is sending already upped voltage to the CCFLs a regular switch is not reliable.

Anyway, it sounds like this contraption is a light, a heater and a fan. Common power supply ? That is common. Correct me if I am wrong.

If I am not wrong I say in the very long run you might cost a little longevity running without that part of the load, but I say MIGHT. Not for sure. And it's not like it's going to fail overnight.

Don't sweat it.

 

On Saturday, March 16, 2019 at 6:16:26 PM UTC-4, Jeroni Paul wrote:

Adrian Caspersz wrote:
How complex would you like this?

I'd separate things and run the fan from it's own power supply that also
supports a circuit that

1) switches the fan off after the lamp has cooled,
2) doesn't allow the inverter to turn on if the fan is not running

A bit of simple logic, or a micro....

--
Adrian C

The fan is not for cooling. It is a mosquito trap and the fan sucks mosquitoes attracted by a chemical compound, heat and UV light. The fan must not stop or the mosquitoes will escape.

I forgot to mention it is a Jata MT8.

A few of those fly and mosquito traps on youtube look like they're very effective.

 

On Wednesday, March 20, 2019 at 8:37:41 AM UTC-4, pf...@aol.com wrote:

On Wednesday, March 20, 2019 at 8:24:55 AM UTC-4, Tim R wrote:
Cat zappers, on the other hand.......................

True story:

We had a very large, fearless, but gentle Maine Coon named Boswell, who made it to age 16, and to 18 pounds before succumbing to cancer. In any case, he was a bit of a wandered, even when neutered. As we had an electronic fence for the dogs, we got a collar for him. The first day he wore it, he walked up to the edge of the property - we could see him twitch - carefully walked through the zap area, turned around and walked back. We went to the fence supplier and got the "super max" collar. Next day, he did the same thing.

Some cats....

Yes, some cats... go on...

 

[Jeroni Paul]

pf...@aol.com wrote:

As long as you understand that so-called "mosquito traps" based only on light do not actually attract mosquitoes, you will find that any light will do.

The shocking trap has been demonstrated to attract primarily beneficial insects. From: https://www.mosquito.org/page/faq

Do Bug-Zappers work?
Black light insect electrocution devices (Bug Zappers, etc.) are purchased in huge quantities by homeowners due to their demonstrated ability to attract and kill thousands of insects over a 24 hr. period. One industry representative estimates that over 1.75 million of these devices are purchased annually in the U.S. But do they really control pest insects? Bug zappers do indeed kill some mosquitoes. However, the only two controlled studies conducted to date by independent investigators at the University of Notre Dame showed that mosquitoes comprised merely 4.1% and 6.4% respectively of the daily catch over an entire season. Even more important was the finding in both studies that there was no significant difference in the number of mosquitoes found in yards with or without bug zappers. What is particularly disconcerting, however, is the number of non-pest insects that comprise the vast majority of trap catch. Many of these insects are beneficial predators on other insect pests. They in turn constitute a major part of the diet of many songbirds. Indeed, reduced numbers of moth and beetle prey species have contributed significantly to the decline of songbird populations in many affluent suburbs. Insect electrocution devices undoubtedly bear some responsibility for this phenomenon. Mosquitoes continue to be more attracted to humans than to the devices. One study conducted in homeowners' backyards showed that of the insects killed by these devices, only 0.13% were female mosquitoes. An estimated 71 billion to 350 billion beneficial insects may be killed annually in the United States by these electrocuting devices.

Let your conscience be your guide.

Peter Wieck
Melrose Park, PA

When the bulb blew I searched the net to understand if it was worth replacing the bulb and found the information you posted. The fact is its effectiveness went down without the light, the bug container was almost empty and mosquitoes were bitting in the area. I concluded the machine uses the CFL bulb also as a heat generator and probably without heat mosquitoes were not attracted inside the vents for the fan to suck them.

I could not find a replacement UV bulb of that type but I found a non-UV white light replacement that is enough to generate the intended heat. Time will say if it is effective.

 

[Jeroni Paul]

El jueves, 21 de marzo de 2019, 6:32:22 (UTC+1), jurb...@gmail.com escribiĂł:

"The fan is not for cooling. It is a mosquito trap and the fan sucks mosquitoes attracted by a chemical compound, heat and UV light. The fan must not stop or the mosquitoes will escape. "

When it STARTED to run with a blown bulb what happened ? It ran. So it should run again. However, if it is sending already upped voltage to the CCFLs a regular switch is not reliable.

Anyway, it sounds like this contraption is a light, a heater and a fan. Common power supply ? That is common. Correct me if I am wrong.

If I am not wrong I say in the very long run you might cost a little longevity running without that part of the load, but I say MIGHT. Not for sure. And it's not like it's going to fail overnight.

Don't sweat it.

I tested to remove one wire while lit and nothing wrong seems to happen, the light just goes off and the fan continues to spin. I will have to try a relay and see if it turns off reliably.