[RFI] Noisy LED shop lights

[W0MU Mike Fatchett]

I ordered a 10 pack of the Sunco led shop lights for my metal shop 
30x40.  I have not really checked to see if I notice any noise.  They 
are very light weight and BRIGHT!   I have 6 in 20 x 40 area and 3 will 
go in the office of 10 x 30.  The ones can be daisy chained which is 
handy and they take hardly any electricity!  Decent quality.

If I run into any noise issues I will be sure to post.

W0MU


On 6/14/2018 10:32 AM, John K9UWA wrote:
> Sunco also offers the 48" bulbs for replacement into existing fixtures.
>
> https://www.amazon.com/Sunco-Lighting-Pack-Fluorescent-Replacement/d
> p/B0163D7CP8
>
> These are DIRECT WIRE bulbs. In other words remove the ballast and
> throw it away. In many cases the ballasts make noise and as they get older
> they make more noise. It takes about 10 minutes to remove the ballast and
> rewire the fixture for direct 120vac to the bulbs.
>
> Caution there are also other companies who make these Direct Wire bulbs
> but they themselves cause RFI. The key is that all of the bulbs have a built
> in switcher supply and some of the companies have cut the corners with that
> part of their product... no filtering
>
> For the last couple years I have been buying a 48" Direct Wire Bulb made by
> ThinkLux and they to are nice and quiet. But the last couple times I went
> looking to buy more of them everyone was out of that bulb.
>
> In this house alone between the workshop garage kitchen and some indirect
> lighting fixtures I had over 40 of these 48" 4 foot bulbs I replaced. That
> brought the RFI noise down a considerable amount between the ballasts
> being removed and the new no noise LED direct wire bulbs.
>
> John k9uwa
>
>
>>   solved the RFI from shop lights.  I took the noise makers down boxed them up
>>   and returned and told them these lights interfered with my shortwave radio.
>>
>> Then ordered four more of the SuncoTMs.
>>
>> Dale, K9VUJ
>>
>>
>>
>>
>> On 13, Jun 2018, at 14:30, Mike King - KM0T <scsueepe at mtcnet.net> wrote:
>>
>> Great to hear, no pun intended.  I have 18 in one large garage and 6 in an
>> other, I too am glad they are quiet...
>>
>> 73
>>
>> Mike - KM0T
> John Goller, K9UWA & Jean Goller, N9PXF
> Antique Radio Restorations
> k9uwa at arrl.net
> Visit our Web Site at:
> http://www.JohnJeanAntiqueRadio.com
> 4836 Ranch Road
> Leo, IN 46765
> USA
> 1-260-637-6426
>
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