I'm planning on having an indoor garden soon because fall/winter is just around the corner

i have carrots, eggplants, onions, red and green peppers, etc,..
my question is... is there a device that can maintain the source of light my garden needs?
like, the light will go ON in a certain time and go OFF in a certain time? (preferably adjustable light system)
i work at 8am every morning and come home around 3pm. i usually water my plants before i go to work and water them again when i come back home from work. but the light is the problem and my plants are lacking of light source... i cannot put them outside for the whole day when i'm gone because they'll die due to cold temperature.
