This is my first winter with pullets/hens and wanted to add an additional source of heat/daylight hours for them in their hen house. I live in NorthWest Florida and while it is cool, it is not freezing cold. We may get a week to ten days of freezing temps (at night) scattered throughout the winter, but that is about it. I have run a porcelain socket into the coop and have it set on a timer, but was wondering what is the best kind of bulb to use. Thanks for the info in advance.