I want to be able to keep my hens laying all winter, and know that i will need to provide artificial light come September. Question is, what type of light bulb do I need to do this? I would prefer to use a light that uses a standard light socket (have a bunch of them). Is it something I can get from lowes, or would I need to get it from the local feed store? Also, I would i be able to use the same bulb to keep chicks (cornish x) warm before I need to put it in the coop? Thanks.