I have two light fixtures in my coop. One, I have a switch like you would for a light in your home, and also I have one that I can plug in. I sometimes go in the coop after work which is after dark and when I turn the light on to check things out, of course they all jump down like its daylight and start eating and drinking. Then when I turn it off they are in the dark. I have tried a 25 watt red light bulb but they still will jump down sometimes, not nearly as bad though. Would blue or green be better? Or maybe a lower wattage? The only thing about a lower watt bulb is then I can't see!!! lol So what do you think?