When the plants reached three to five inches tall, I replanted each into its own milk container. These containers are perfect because you can see the rootsand know when the plants get root-bound, plus they cut away easily to get the plant out with no problem. The milk containers worked for a while, but then I discovered that the plants outgrow them in about one to two months. I moved all mine into two-gallon ice cream containers after that. It takes me awhile to eat two gallons of ice cream, but when they are empty, they're excellent.
Containers are one thing and lights are another.
I always kept my lights about six to twelve inches from the tops of the plants. This helped the leaves get more light all around. Fluorescents use less electricity than standard lights, so the bill won't be affected by the garden. Within the next month I discovered my plants had outgrown the ice cream buckets and had to decide what to replant them in. I found five-gallon drywall buckets lying around at construction sites and washed them out.