Author Topic: Buying from China?  (Read 5704 times)

Online Solar

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Re: Buying from China?
« Reply #30 on: June 11, 2017, 09:53:41 AM »

All I know is Solar and my son told me about the LED lights.  As I had a lot of lights I did not get any.   My son about a year a go got me a 4 pack of LED Daylight 60W.  As we are old we used 100W so we can see at our age.  My son replace all my wife reading 100 w bulbs, with the LED Daylight 60W and she loves it. 

No way would she go back to the 100W.  So I replaced every light in the house with LED Daylight 60W, we have no dark areas in the house now.  Also I was replacing a light in the house about ever two or three months.  The LED's have been in for over a year now and I have not replaced a one.  In my computer room I was replacing 2 light about every two months.  I have yet to replace the LED lights.  I also no longer need a desk lamp.
Yep, in just a few years the color rendition of the new LED lights has taken leaps and bounds over old style LED. Just a few years ago you couldn't beat the 80 light wave spectrum of a small halogen, while today LED outputs are hitting 100, and still improving on the red and green wave lengths end of the output spectrum.
Phillips, Cree, and many other leading manufacturers are upgrading light output monthly, but there is even hope of bringing back the old incandescent bulb with a leading light wave output that could make all bulbs obsolete overnight.

https://www.sott.net/article/319204-Return-of-incandescent-light-bulbs-as-MIT-makes-them-more-efficient-than-LEDs
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Offline Hoofer

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Re: Buying from China?
« Reply #31 on: June 11, 2017, 12:57:44 PM »
Well, this batch of LEDs - yes, I ran around the farmhouse, replacing everything...  LOL - well, they are as I've said before, not the color temperature I expected.  Even though they all use the same LEDs type "5730", they range from cool white to daylight.

The box(s) say "cool daylight" .... meh... maybe.  Rated for 60k hours, we'll see about that too.  Like I said, it's a crap shoot, sometimes you get a winner, sometimes a loser.  Manufacturer name is Foxanon.

The big ones, with 136 LEDs are -very- bright.  ...as in, the cure for SADD.   They're going in the living areas.  Wifey loves the bright white light for reading in the dining room.
Medium size is 64 LEDs, pretty much the same is a 60watt light bulb, just more on the cool white side.
Small ones are 30 LEDs, I'll use those in appliances.

I am NOT throwing away the old florescent twister bulbs, they'll get used if these things fail.   Voltage rating is 100-140vac, pretty much in line with what we get... LOLOLOL

I do have a handful of 30 LED lamps which have lasted a long time - as long as they aren't subjected to COLD.  Sorry, no brand name.
All animals are created equal; Some just take longer to cook.   Survival is keeping an eye on those around you...

Online Solar

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Re: Buying from China?
« Reply #32 on: June 11, 2017, 02:09:28 PM »
I just got in a pile of LED light bulbs.   In light output, they would be 30w, 60w, 120w.   We have rather dirty power, for a real scare, plug in a VOM and watch the voltage bouncing up and down. ...yeah, those sensitive electronics are absorbing all that crap.

The last batch lasted less than one year, they say the power limiter(s) were poorly made, and frequently failed.
This batch is suppose to be better.   Cold temperatures have killed several we had on the porch & outdoor ceiling fan.

My cost per bulb is 20% of the cost from a local big box store. 

One of my concerns was RF interference - nope, there is none, unlike the florescent twisters I got from a local store.
... we'll see how they do...
Just curious, is that a true sinewave meter you're using? If your voltage is fluctuating that much using a true sinewave meter, you may want to have the utility check your transformer, it could be failing.
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Offline Hoofer

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Re: Buying from China?
« Reply #33 on: June 12, 2017, 04:51:37 PM »
Just curious, is that a true sinewave meter you're using? If your voltage is fluctuating that much using a true sinewave meter, you may want to have the utility check your transformer, it could be failing.
It is a true sinewave VOM, I can put it on a scope, and take a picture of it - anything other than "clean power".   I have several Fluke VOMs, and a very nice quad-trace oscilloscope (yes, I'm an electronic porn junkie, if it consumes, measures, converts or generates power - I'm a fan of it.)

We the 2nd to last on a dozen mile long leg, powering several farms... which means old motors that inject all kinds of crap back into the line.
Without putting a scope on it, for proof, meh, it's still bad enough the VOM just bounces up and down like a ping pong ball, summer or winter - we have FEW purely resistive loads, all kinds of electrically noisy crap.... too bad I can't harness those capacitive induced voltage spikes.

the other  day, as I was driving to work, I was noticing all the pole hung transformers with burn & rust blotches from exceeding the limits, or low voltage & overheating.   Meh, it adds to the fall colors, they blend right in with the trees - those orange & red... probably glow a burnt-umber color on a cold, cloudy winter night.
All animals are created equal; Some just take longer to cook.   Survival is keeping an eye on those around you...

Online Solar

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Re: Buying from China?
« Reply #34 on: June 12, 2017, 07:12:01 PM »
It is a true sinewave VOM, I can put it on a scope, and take a picture of it - anything other than "clean power".   I have several Fluke VOMs, and a very nice quad-trace oscilloscope (yes, I'm an electronic porn junkie, if it consumes, measures, converts or generates power - I'm a fan of it.)

We the 2nd to last on a dozen mile long leg, powering several farms... which means old motors that inject all kinds of crap back into the line.
Without putting a scope on it, for proof, meh, it's still bad enough the VOM just bounces up and down like a ping pong ball, summer or winter - we have FEW purely resistive loads, all kinds of electrically noisy crap.... too bad I can't harness those capacitive induced voltage spikes.

the other  day, as I was driving to work, I was noticing all the pole hung transformers with burn & rust blotches from exceeding the limits, or low voltage & overheating.   Meh, it adds to the fall colors, they blend right in with the trees - those orange & red... probably glow a burnt-umber color on a cold, cloudy winter night.
:lol: :lol: :lol: :lol: :lol:
It just dawned on me, the last time I ran a check on a utility was before the solar BS, which is another issue with peaks, surges, and dropouts, but you're right, 12 miles with heavy equipment in between makes for a Hell of a ride.
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Offline Hoofer

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Re: Buying from China?
« Reply #35 on: June 14, 2017, 05:35:34 AM »
As a fair warning for anyone trying ALIEXPRESS, or ALIBABA - if you spend money, expect it to be GONE FOREVER.

the "buyer protection" pages, "open a dispute" and fair treatment, get a refund...   fat chance.  I've been waiting 2 months for refunds, 2 of them, and absolutely nothing is happening.  They're not even claiming I've been refunded, Oh, it's settled, the amount to be refunded is agreed upon.  No check, no reversal on the credit card, no account credit - nada, nothing. 

Completely empty promises.

One item I was shorted, ordered 3, got 2.  They agreed, but haven't credited me, nor shipped the missing piece.  $12 is gone like vaporware.
The other item, 50 foot switches, which cost almost $100 to return ship, and repayment would be questionable...  we settled on a $98 repayment to my credit card - got nothing.  Went through the entire dispute process, followed all their steps, agreed, got nothing.

Forget the Credit card Companies - these processes take so long, you're put well outside their ability to stop payment.

The Chinese will take your money and run - AliExpress is no different, it's a total crap shoot.... but I've said that, haven't I.
All animals are created equal; Some just take longer to cook.   Survival is keeping an eye on those around you...

 

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