I've read a lot saying that black bulbs are better because they give off more heat and less light than other bulbs, so I bought a 75w black heat bulb and a 60w regular black bulb. I decided to try them out to see how hot they get, but they are useless. They heat up like curling irons, meaning the bulbs themselves get extremely hot, but you can't feel heat coming off of them from more than an inch away. I can't get my thermometer over 91 degrees with both of them on at the same time. Whatever heat does come off of them goes straight up instead of radiating down like a regular heat bulb, which is not very helpful to cold chicks underneath them. I wasted my money buying 6 of these . Anyone know if red heat bulbs work any better?