I'm growing my plant only with sunlight on my window,will it make a difference if i

my weed is growing quite well,but is winter here in Brazil,will it make any difference if i live the lights on at night????????

nope its a waste of electricity. wont make a difference. your plant will probably have a trouble time growing since your light schedule is at a strange time even though it is brazil... best bet would be able to get a CFL and put it on it all the time. (at least 18 hours a day) Good LUCK

Please don't make new threads. You already have one. And you shouldn't really ask here anyway. This is the section for logs.

However. If you mean leaving you normal indoor lights on it wont help anything. You need a special light for plants. There are some other lights that could help you a bit but basically the best way to go is to get a special grow light.
But man don't invest too much until you have learned something about cannabis plants. You can't keep on asking the absolute basics that you should learn yourself by just reading up. That is lazy and if all did i would flood us with posts.

Before you keep on asking take 2 hours and look on the internet for information on how to grow cannabis.
Download Jorge Cervantes Ultimate Grow DVD its very good to learn from. Just be curious and get some basic knowledge and we will be happy to answere you.

The log is where you post when you are explaining to others how your grow is progressing not to ask questions about every little thing that we actually can expect you to know.

Puffzter