Indoor When is the best time in the day to change the light setup?

[hejdaman]

Hi, everybody! ​

I have a question about what time a day to change the setup? I have recently bought a new 400w digital ballast, and a cool-tube reflector that i plan to upgrade as soon as possible.
Now i have a 250w Hps with a magnet-ballast that i am going to use in my veg-closet, but with a 250w MH-bulb.

The guys in the growshop had forgot to pack the 400w bulb so now the project is on hold for a while. But as soon as i get that bulb i will have to put up all the lights and stuff.
Take off the carbonfilter from the exhoust-fan, and connect it to the cooltube, and then connect the cooltube to the exhoust.

Should i do this when the plants "go to sleep"? Or can i do this during the day? If so, they will be without light maybe for a maximum of 1 hour, when i put up the lights, and rewire the ex-fan, and stuff.

Can someone give me some feedback maybe. I am thinking of hanging up the cooltube for now with the 250w magnet ballast connected.

Any kind of help is very helpful. /H.

 

[Northern Grower]

I usually do my setup changes during the day.

 

[hejdaman]

Do you change when you have the lights on? Do the plants suffer from it? I grow autos of course.

/H.

 

[hejdaman]

Sorry, to post a new message, but i want to know what can happen when i change the lights. How long can they be without light? And what happens when they are without it?

 

[Muddy]

Your lights won't be off long enough to make any real difference. Just go ahead and make the change whenever it is convenient to you.

 

[hejdaman]

Okey. That´s what i thought. I just wanted someone to tell me that what i was thinking was right.

Thanks, Muddy,

/H.