24/0 to 18/6 light cycle change?

Can i change from 24/0 to 18/6

i was using 24 in the germination stage now im on the vegetation stage but i don't want the lighting to stay at 24/0 due to power consumption, can i change it or would the plants flower?

Also how long do you reckon until i turn the standing fan on, because the plants are abit to small and its to much pressure on the stems at this stage i think

yes you can. 18/6 tells the plant's it's veg time.

though I had an autoflowering strain that started flowering in 18-6, it's still starting too. no plans on reverting itself back to veg, I'm going to force it 12/12 outside.

but yeah you can switch to 18/6 from 24 at any time.