I posted this on another forum. But thought I would post it here too in case there are people with ideas that don't frequent the other forum.
I have an older model LLED3 light from Penn State Industries (PSI) that I bought 3yrs ago via Amazon when PSI was selling on Amazon. It has worked fine. Image below.
But recently I bought a second one new from Penn State directly from their website (looks the same as photo below). When I set it up and turned it on it would flicker if the old one was on. Even if plugged into two separate outlets that are on separate breakers. I called PSI and got switched over to tech support. He told me he would check a new one before it was sent and mark the box so I would know it was checked. And they would send me an UPS call tag for the one I had just received so I wouldn't have to pay for return shipping.
Well got the new replacement today.. It does the same thing. It will flicker if the old one is on. Yet the old one does NOT flicker. ALSO< I unplugged the old one and set up both new ones and if one is on the other will flicker if they are within about 5ft of each other even if one separate circuts. Called PSI tech support and he was kind of rude and said "well I checked it before it went out so the problem is on my end. When I explained that it happened with the old one or the other new one plugged in he just sent me over to customer support to get another RMA number for the second one too. The customer support lady issuing RMA's said the return shipping on the second one would not be refunded as the electrical problem was on my end since they had checked the sedon new unit and it worked fine before it was shipped to me. Again I tried to explain that both new ones will flicker if used together within 5ft. even if on two separate circuts. So to me it's something within the low voltage transformers or internal circuitry since they don't do it if only one is on by itself. But she was adamant tht the issue was with my electrical system. And no redund for shipping would be issued.
I have other LED lights both ceiling and machine tack lights and none of them flicker when other LED lights are on.
Any electrical gurus out there have any ideas or suggestions? Is there some kind of separate plug in module/filter or something that can be used to mitigate the frequency interference or whatever is causing the issue?
Thanks
Ricc