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Ballast for electric jumping

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New Member
I found many 240V ballast for the Osram 18W downlight (more than 30) and I hooked 3 of the ballast in parallel using a 12VDC power supply, and sometimes I could see sparks jumping(mostly when I touch the terminals and let go it would create a spark). My question is whether which is better, hooking the ballast in series or in parallel to achieve a more powerful spark.

And also what would happen, if I connect the ballast to the mains 240VAC? Would it create a bigger, longer spark?


Active Member
The electronic ballasts not isolated from mains, no possible the serial connection!
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