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Old 11-09-2010, 12:25 PM   #1
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LED 12 volt lighting: Long term results

Well, my 24 and 36-LEDs arrived yesterday from Hong Kong. It was dark by the time I got back from the mile long walk from the mailbox and right away I ripped open a 36 and installed it over my kitchen counter, stove, & sink area.

Here are my comments/findings:

1) The units are smaller than I pictured them, but so what.

2) The wires on them are incredibly puny but I can cope with that.

3) The bayonet fitting is some kind of mini-plug that doesn't fit my 1156 type sockets. So I just cut the wires and taped them into the circuit.

4) The amount of light from the 36-LED is FANTASTIC! One 36-LED completely illuminates my entire counter-stove-sink area wonderfully! I am not used to regular 110 volt lighting and hate it because it's generally so bright when I visit normal peoples' houses that it hurts my eyes. But I would compare this 36-LED to about a 60-70 watt bulb, or so it seems to me.

5) From my amp-meter reading it appears that the 36-LED burns about 1/4 amp or just a tad more. I can easily live with that!

6) From the amount of light this 36-LED throws, I plan to mount a 24-LED over my kitchen table. That should be plently of light and why waste power with a 36-LED when you don't need to?

7) The BIG QUESTION now is how long this relatively "cheap" ($9) LED will last in daily useage. My previous LEDs started crapping out within a year or so and did not live up to the hype. While old time incandescent auto bulbs simply NEVER burned out in my 12 volt stand-alone solar electric & battery system (well, almost never).

8) One problem/question: Since the wire leads on these Hong Kong LEDs are so puny there is no good possibility of soldering them into the circuit like I typically like to do. I guess I can tape them on but here's a question:

QUESTION: Is there any kind of electrically conductive glue-cement-adhesive on the market you can use instead of solder to make a permanent electrical connection? This would seem to be a no-brainer since no melting heat or dripping solder would be involved. But does it exist? If it does I've never heard of it. But how cool would that be? Just wrap the wires together and coat them with the conductive adhesive and then tape it. Presto! A perfect permanent connection! Useful, but does it exist???

I plan to update this thread by-and-by with long-term results of these Hong Kong LEDs as their reliability and longevity is unknown. Please post your own thoughts and experiences with ("cheap") 12 volt LED lighting as this is new and exciting but still pioneer technology. But if you can find good ones that don't break the bank, they are the way to go.

Thanks for clueing me in about these LEDs from Hong Kong. I don't know if I'd of found them without the help of people on this forum.
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Old 11-09-2010, 01:04 PM   #2
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Great report! Keep us posted!

So who (which vendor) was you actual supplier, Paul?
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Old 11-09-2010, 01:09 PM   #3
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Fire,

Mine came from a eBay seller named farmerseller.

Thanks for the interest. I am very excited about these things but am dubious about how long they will last. Hopefully I will be proven wrong.

The thing about my system is that I'll be using these LED lights every day year round.

I'm interested in other people's experience as well. We need to find a source of good LED lights at a decent price.
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Old 11-09-2010, 01:16 PM   #4
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And what do you mean by "normal people" ?
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Old 11-09-2010, 03:16 PM   #5
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And what do you mean by "normal people" ?
Oops!

By "normal" people I mean those who live in normal houses with normal 110 volt AC lighting and normal appliances and use UNLIMITED amounts electricity with no notion of what it means to conserve power and don't care how much they use anyway because it doesn't matter. They buy a cloth shopping bag and that makes them "green."

When you're living on 12 volt photovoltaic power with a battery bank in the fall and winter months when the days are short and it's cloudy much of the time that's not "normal" by regular standards.

That's what I mean...
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Old 11-09-2010, 04:01 PM   #6
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Thank you for the clarification. I just want to make sure that no one accuses me of being completely 'normal". I presently do reside most of the time in " sticks and bricks" but have always strived to not be labeled with that "normal" distinction.
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Old 11-09-2010, 04:04 PM   #7
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lol normality is a fictional ideal.


glad to hear they work okay. just wonder what to do about a base for replacements.
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Old 11-09-2010, 06:21 PM   #8
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Please keep us all updated on the led lighting as far as longevity is concerned. I am thinking of purchasing some myself. I believe 1/4 amp draw that you mentioned is less that 1/4 the draw of an 1141 bulb that is used in incandesants. Some of my concerns are that it is difficult to find out how much light is put out by these leds and the color of the light without purchasing them. I cant remember ever seeing the lumens rating advertised or the color temp. You asked about a glue/adhesive that can be used in electrical applications, do a search on conductive epoxy and perhaps you will find something you can use.
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Old 11-10-2010, 11:58 AM   #9
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Thank you for the clarification. I just want to make sure that no one accuses me of being completely 'normal". I presently do reside most of the time in " sticks and bricks" but have always strived to not be labeled with that "normal" distinction.
No, I'll never accuse ya' of bean' normal if you don't accuse me of it either....

Seems to me people in this forum are trying to get away from the normal world, but in a good way.
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Old 11-10-2010, 12:01 PM   #10
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lol normality is a fictional ideal.


glad to hear they work okay. just wonder what to do about a base for replacements.
I plan to order a few spare ones the minute I know these are not complete crap. Just when I'll know that isn't clear.

My last LEDs lasted at least a year before crapping out. I won't wait that long because these babies throw lots of light and consume very little power. First impression is a good one. But will they last?
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