I bought a Thermocube, mainly to encourage my hens to lay and to keep the water from freezing. I just bought a red bulb, but am wondering if the wattage may be too high. It is 250 watts. Initially, I thought that this high wattage would just make it shut off sooner, since the coop will warm up quicker than with a lower wattage. Just thinking more about it and wondering if it might emit too much heat for the hens, even though it is not on for long periods of time. The coop is about 4X5 and I have 6 chickens. Would love some advice, since we plan to put in the heat this weekend.