Review on Topnisus [Pack Of 10] Clip-On Ferrite Core Ring Bead Anti-Interference High-Frequency Filter RFI EMI Noise Suppressor Cable Clip (3Mm Inner Diameter) by Andrew Cramer

My LED landscape lighting interferes with VHF TV reception - when the lights are on they completely block channel 11 reception. I tested it on a lamp next to the antenna and the effect was immeasurable, so this doesn't solve my problem. It would be useful to know the type of ferrite so one can examine and determine if that type would be effective at the spurious frequency. I tried several rings in different places between the lamp and the power supply (also tried different power supplies). They were ineffective. I gave it 3 stars not because it didn't solve my problem, but because 1) the parts don't include the ferrite type, 2) I got the wrong size ring so I only have 9 that are used as intended be able. and 3) claims to help solve problems with television reception, but does not specify which bands are most effective; VHF and UHF are completely different frequency bands.