When my family goes on vacation, we move all the chickens to the basement, because we don't want to worry about depending on people to shut the chickens up, etc. The chickens stay unattended down there with automatic waterers and a filled feeder for as long as we're on vacation. Since its completely dark, we need lighting. My question is, is it okay for them to be down there with constant light, day and night, for as long as maybe 2 weeks?