I purchase three CREE LRP38 LED spotlights a couple of years ago to use in an eight foot track light 120V ( no transformer) system.
Each time I turn on the lights (one or all) I would lose channels 7 & 9 which are VHF digital signals. Turn the light(s) off channels 7 & 9 reappear. Have three separate digital tuners that are fed from the same VHF antenna. Same issue with each tuner. The store I purchase the light from sent out replacements. Same problem. I contacted Cree but was never able to get a response from the contact I was given. The lights are nice but they interfere with VHF signals.