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Fuse or sparks in middle of black background
Micro mitochondria cell biology structure on black bg able to loop endless 4k. 3D Illustration
Worried woman using flashlight to navigate her dark home during sudden blackout, checking fuse box in corridor as she deals with electricity shortage and energy crisis
Burning fuse or sparkler lights up black screen. Hand-drawn cartoon animation of fire burst with rays in 4K with alpha for celebratory scenes.

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