Mosquito Zapper with absurd manual - test, teardown & improvements

Today I tested an electric insect zapper from LIDL supermarket. Its nonsensical manual calls it both a zapper and a repeller (two completely different things) and also confuses UVA light with blue light. This zapper has 4 UV LEDs, a high voltage grid and a twilight sensor. I've reverse engineered its schematic and then successfully improved it.

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