General lighting question, veg vs bloom

Asking for a friend… No really. My light is not switched. His light had 'veg" and “bloom”.
His plants are flowering (fems), sooooo;
Veg off, bloom on or veg and bloom both on?

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Both on wide open.

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As much power as it can. You can use Photone to check the output. The better the light the better results!

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