If you add one of the lights that have the big metal reflector you will greatly increase your egg production. Get a dust to dawn controller (sold for Christmas lights) and set it for on for 5 hours after sunset. Place a 13 watt, 60 watt equivalent, in the light fixture, hang it just outside the cage and watch what happens. It will take about 3 weeks before they start production. The guy that told me about it said that several people he told about it ended up asking how to turn it off. Of course that is the answer, turn off the light.