We put a light in the hen house the first of December. We had been getting one egg every other day for about six weeks at least. And before that, for a few weeks, maybe two eggs. Out of 24 layers. I'd say production seriously dropped about late September, early October, but I'd have to check my records to be sure. Ten are pullets hatched last March, the rest are a year older. Anyway, I could see this not improving for another month or two at least, so we put the light in, as I say, on or about Dec. 1. It's a heat lamp housing with a regular household bulb. We turn it on about 4 pm and off at 7 pm. This gives them a couple extra hours of light every day, giving them a 12-hour "day." For a couple of weeks nothing changed. Then one day we got two eggs. Gradually we have been getting more eggs. Now, a month later, we are getting 10 or 11 eggs a day. We feel that we just jump-started the winter solstice by about three weeks.