im starting a small grow of two plants in my basement in soil, they have yet to sprout in my window sill. when i move them to downstairs into their 5 gallon bucket, what kind/size light bulb should do the trick? open to any suggestions. the room is about 3 feet wide 8 foot tall and 4 foot in length, any help is greatly appreciated preferably on the cheaper side and purchased off of amazon or Home Depot thanks