This Compact, lightweight, high-frequency electronic ballast is designed to operate off the 230V AC mains supply at 50-60 Hz and is suitable for 36 – 40 W fluorescent tubes.
The advantages of such a ballast are:
This unit cost me less than $2 to build.
This unit operates off the AC mains with a voltage of 230 Volts and voltages generated within the unit can reach 600 to 800 Volts. Extreme caution must be exercised while building, testing and using this unit.
At a minimum a VARIAC (Variable AC transformer), Isolation transformer and meters for monitoring the input voltage and current are required during initial testing of the prototype units.
It is strongly suggested that you go through the excellent Instructable "Work safely with high voltage" by kovo:
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