Despite their desert surroundings, rainbow boas are nocturnal by nature and do not require bright lights. It is advised, however, that a 5.0 ReptiSun UVB bulb be provided during the day light phase of the light cycle. This will help prevent fungal infections in your snake.
Rainbow Boas are distinguished by their shimmering scales. A rainbow boa will have a stunning iridescent sheen if you shine a full-spectrum light on it. These snakes do not appear rainbow in the shadow or low light settings. The rainbow appearance is caused by a phenomenon known as structural coloring. Structural coloration is when the surface of an object changes color to match its underlying structure. For example, when you look at a peacock's tail, you see that it is made up of many different colors: red, green, and blue, which together make up the entire spectrum. Each feather has little hooks on its surface called papillae that reflect light of certain wavelengths back into your eye.
Structural coloration can be useful for signaling because it allows the animal to communicate information about itself without using pigment. This is particularly important for animals who cannot change their color like fish or mollusks, but still need to attract a mate or scare away predators. Rainbow boas have evolved this way of life and they have been doing so for over 100 million years!
Another reason why rainbow boas have evolved to have these colorful scales is because it helps them absorb heat during the day and release it at night. They will usually retreat under a rock or log to protect themselves during the hot summer months when it is dark outside. When it gets cold outside, they may leave their shelter and sun themselves on a rock or log to warm up again.
Because most UVB bulbs do not generate much heat, a heat lamp should be provided for basking. Bearded dragons require darkness to sleep well. If you use a light at night, it will keep them awake and may cause them to lose weight if they eat too much during their daily activity cycle.
The only other consideration with lamps is that some types of lamp filaments can emit harmful substances when they burn out. These include mercury vapor and phosphorus. While this is unlikely with modern lamps that are designed to degrade over time, it's best not to leave any lamps burning down to nothingness. A burned-out filament will release these chemicals into the environment.
Lamps also produce ultraviolet radiation (UV), which is part of the electromagnetic spectrum. This type of radiation has two main effects on reptiles: It causes sunburn and skin cancer. Sunlight is necessary for skin health and can be used as an alternative or additional method of heating your bearded dragon. However, excessive exposure to sunlight can be dangerous. Be aware of where you place your lizard in relation to the sun and make sure that he does not suffer from solar dermatitis. This condition occurs when the skin becomes red and scaly due to constant exposure to sunlight.
Full spectrum lights do not produce enough UV light to have an effect on health. Their UVB intensity is barely enough to offer one minute of natural sunshine per eight hours. Proponents claim that full spectrum lighting may help plants photo-synthesize nutrients, but there is no evidence supporting this theory.