Failed 2D LED replacement lamp. (with schematic)
- Published on Aug 22, 2019
- I was sent this lamp by Richard, who had inadvertently put it into a higher power rated fixture.
It overheated and failed due to the higher current passed by the fixtures existing ballast.
It's odd that the lamp even fitted onto the higher rated lamp connector. I was always under the impression that they were keyed according to the rating of the fixture.
The circuitry is very simple, since it relies on the existing ballast or electronic power supply to limit the current through the LEDs.
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- Science & Technology