These bulbs are often suggested to customers that don't really know that much about their lizards before they do a little bit of research and these red lights will keep them up at night. They are unhealthy for bearded dragons. Do not get a red light to keep your bearded warm at night because it will disrupt their sleeping patterns. Make sure your house is warm enough that it isn't going below that needed temperature for them at night as the desert and areas where these lizards do live naturally does get cooler in the evening so you do not have to keep it at the daytime temperature at night. Do not get these red lights they are not good for your bearded dragon.