If your home gets colder than 65 degrees, you must obtain either a ceramic heat emitter or a deep heat projector. Ceramic heat emitters (CHEs) are not what people imagine when they search for a bearded dragon heat lamp. Many people associate reptile nighttime heat lamps with red or black bulbs (sometimes called moonlight bulbs). Colored light bulbs are inappropriate for bearded dragons because they disrupt their sleeping patterns. CHEs give off no visible light and instead use infrared heat to penetrate deep into the muscle. They are easy to use because the bulb screws into a standard-size ceramic socket and can be used with a regular dome fixture or a wire cage clamp lamp. One disadvantage of CHEs is that the heating element gets very hot and can start a fire if misused--a ceramic socket is a must!
Another newer and more efficient option for bearded dragon nighttime heating is called a deep heat projector. Deep heat projectors produce no visible light and penetrate deep into muscle tissue more effectively than CHEs.