Just a reminder of practices from China:
Just because the product may carry the proper 'graffiti' on the regulatory
label (required for all Home and Small Office electronics - FCC Class B),
does not mean any attention has been paid to design, testing and approvals
for EMC and Safely. I have tested and rejected many, if not most,
products (mostly from China and even some from the US) that adhere to this
scenario. Printing and applying labels is cheap: "How many labels do you
need?". Designing, testing, and approving products for EMC and Safety is
expensive (between $3K TO $30K on up, depending on complexity). Safety is
not necessarily required in the US. However, to justify the CE mark (N O
T standing for China Export ! ! ! ! ! ! ), both safety and EMC must be
conducted by an approved body. Most of us know this. However, because of
the example set by the Chinese, many legitimate US suppliers are taking a
similar approach weighing cost against risk and reputation. Most get away
with the practice. A very few do not.
*Bottom Line:* Don't take the presence of the the proper 'graffiti' on the
regulatory label as gospel. Request the documentation to justify what is on
the label. Read the report in total to verify it isn't assembled from
multiple and non-related equipment and reports (another common practice
from China).
Been there. Done that. Experienced all of the above (and then some).
Dave - WØLEV
EMC Design & Test, LLC
On Mon, Jul 29, 2019 at 3:37 PM Mike Pansini <kf5yub@gmail.com> wrote:
> Greetings,
> To direstly answer the LED growing lights, find a company that is FCC
> compliant and has proof of FCC as well as all the safety RoHS etc... Ask
> about their return policy.
> After reading a thread from FCC about LED grow lights, I began to question
> yard and street lights as well. I talked with the FCC regarding the "grow
> LEDs" causing interference. That's a fuzzy situation is about the answer I
> got. Clearly, I was told, if something is FCC certified, either a sticker,
> pamphlet, other FCC paperwork is required by the FCC to accompany the
> product. I think it's a lot of money to certify something and not display
> proof, be ware!! I tried a couple "FCC certified" LEDs only to find
> problems with one manufacture stating "FCC" but no proof of FCC, and broken
> electrical parts, or the product is not in compliant with FCC. They did
> cause about a S-5, and S-3 QRN and that's not good for hearing weak
> signals.
> Look up *MORSEN* *Lighting*,* they are FCC certified*, and supply that
> proof in the paperwork supplied with their products. They do cause slight
> QRN but may be an S-1 or less I found. I hope this helps you and your wife
> have fun with your hobbies at the same time. I am growing about 50 Rare
> Hungarian Paprika Peppers, some two Habaneros and two Serrano peppers. I
> grow bare root trees (Arbor Day Foundation), getting them ready for
> outdoors...Golden Raintrees, Crape Mertyle bushes, Nanking Cherry bushes
> (finally made Nanking Cherry Jelly and syrup), Bodark tree, Passion fruit,
> (enclosed porch) Rubber plants, Ponytail Palm tree.
>
> https://www.morsenled.com/ <https://www.morsenled.com/>
>
> 73,
> Mike KF5YUB
>
>
> On Sun, Jul 28, 2019 at 11:00 AM <rfi-request@contesting.com> wrote:
>
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> > Today's Topics:
> >
> > 1. LED Grow Lights (Kim Elmore)
> >
> >
> > ----------------------------------------------------------------------
> >
> > Message: 1
> > Date: Sat, 27 Jul 2019 21:09:50 -0500
> > From: Kim Elmore <cw_de_n5op@sbcglobal.net>
> > To: "rfi@contesting.com" <rfi@contesting.com>
> > Subject: [RFI] LED Grow Lights
> > Message-ID: <e76a5508-0cc1-f454-7061-c00bb023b8a2@sbcglobal.net>
> > Content-Type: text/plain; charset=utf-8; format=flowed
> >
> > My Wife enjoys starting garden plants form seed indoors and, up until a
> > few days ago, used a 175W metal halide lamp for the purpose. It used and
> > electronic ballast that, sadly, has bitten the dust. A new ballast is a
> > bit over half the cost of a much brighter and efficient LED grow light.
> > But I'm concerned about RFI since it almost certainly uses a switching
> > supply. Does anyone have any direct knowledge of quiet LED grow lights
> > in the "1000W" category. (I don't know where that term comes from, but
> > these tend to be rated at ~165 W power usage.)
> >
> > Kim N5OP
> >
> >
> > --
> >
> > Kim Elmore, Ph.D. (Adj. Assoc. Prof., OU School of Meteorology, CCM, PP
> > SEL/MEL/Glider, N5OP, 2nd Class Radiotelegraph, GROL)
> >
> > /"In theory there is no difference between theory and practice. But, in
> > practice, there is." //??? Attributed to many people; it???s so true that
> > it
> > doesn???t matter who said it./
> >
> >
> >
> > ------------------------------
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> > Subject: Digest Footer
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> > ------------------------------
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> > End of RFI Digest, Vol 198, Issue 19
> > ************************************
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--
*Dave - WØLEV*
*Just Let Darwin Work*
*Just Think*
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