Review on Topnisus [Pack of 10] Clip-on Ferrite Core Ring Bead Cable Clip - Anti-Interference Filter for RFI EMI Noise Suppression, High-Frequency Optimization (5mm Inner Diameter) by Terrence Castillo

Every time my spare LED fluorescent lights were turned on in the room next to the TV room the TV would cut out with PBS being the worst until the lights went out. I ordered them and put them around the TV wiring which is plentiful. Then I opened up the 4 foot unit itself and placed one of the magnetic high pass filters on each of the wires inside. Turned the TV on to PBS. This and other channels have not been synchronized and continue to appear after a few weeks. They work!