Buzzing LED lights indicates several possible issues:1. Check the circuit - If you are running multiple lights on the same circuit, it is possible that you need to disconnect some to not overload the circuit. Too much draw could cause the current to not be constant, which can cause buzzing.2. Check dimmer capacity - For multiple LED bulbs attached to a dimmer, verify the wattage supported by your dimmer. You don’t want to overload the circuit and may need to disconnect some to see if this solves the problem.3. Check dimmer compatibility - Buzzing or flickering may also indicate that the dimmer is not compatible with the light bulb. We highly recommend using an ELV (electronic low voltage) LED dimmer from our list of compatible dimmers in the Manuals & Documentation page.4. Mixed bulb types - Avoid mixing traditional and LED style bulbs in the same light fixture. Traditional bulbs such as incandescent, halogen, or CFLs use more power than LEDs and this can sometimes cause a varying current so that the LED won’t function properly.NOTE: Our bulbs are FCC certified. The buzzing you hear is not due to radio interference.