Fluorescent ballast tests and teardowns - with schematics
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Fluorescent ballast tests and teardowns - with schematics
One of these lights will last for over 50 years. Spoilers - it's not the electronic one. But the downside is that it is also massively less efficient. The ballast dissipates almost as much power as the tube does. A rough calculation shows that it's mainly due to the winding resistance of the ballast at the rated current. (operating current 0 ...
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