It's angled down, on the same wall as the big door. Last night 3 went with heads in feathers. Several sleep in nest boxes which provide shadows. Several turn their backs to it. I do wind up with eggs through the winter, but haven't had more than 1 or 2 hens over a year old through the winter yet. Those aren't laying every day. In the past, it hasn't kept the water from freezing, but new waterer, closer to water, so testing that. I am getting an egg when I open the coop in the morning (before full daylight) some days, but considering the 3 month hiatus through the summer heat, not worried about her. As the coop is 8×9×7 (feet), the warm patch still gets pretty cold. If I can hang on to all the hens through next winter, I'll get a better idea of how much the light affects them. If it does have a major affect, I'll switch it to red. When I got the bulb, I couldn't find any red ones.