Glow a neon bulb using 9V DC battery and a relay! Gallery

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created by meinsamayhun • 11/05/2025 at 18:04

By wiring simple electrical components like relay, neon bulb and a 9V battery, back emf from the relay can be used to light the bulb.

hardware

completed project High voltage Relay Self inductance 9 volt dc battery back emf