my bulbs make a high pitched khz one tone sound(eeee like ringing in the ears) constantly it's giving me a headache is their something wrong with these bulbs using mogul 4200k bulb phillips ballast i've checked all the connection and changed the ballast over to another one but they continue to do it
phillips advance ballasts: IZTMH210315RLFM
phillips bulbs: cdm315/U/O/4K/ED37
phillips advance ballasts: IZTMH210315RLFM
phillips bulbs: cdm315/U/O/4K/ED37