Billygoat
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I am trying to find out if digital ballast user experience a high pitch squealing from their lamps at any time. :wazzup:
The high frequency is most definitely coming out the lamp.they came to conclusion that its the bulbs and cords causing it.. ???
Electronic Ballasts
Fluorescent lighting now uses electronic ballasts for essentially all new commercial lighting in the US, largely because of energy legislation. Fluorescent lamps generate more lumens per watt when operated at high frequency and have no compatibility issues. HID lamps have two issues. There is no demonstrable LPW improvement at high frequency and they exhibit acoustic resonances that disturb lamp operation at the frequencies used for fluorescent lamps. As a result, the adoption of electronic HID ballasts has been slow.
I am trying to find out if digital ballast user experience a high pitch squealing from their lamps at any time. :wazzup:
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