" European standard set with clip Made from sturdy ceramic components, durable materials are durable, very suitable for high humidity glass containers The non-light emits only strong “penetrating” “infrared heat, creating a more comfortable environment for all types of reptiles, amphibians, birds and hamsters The flat design is more efficient than the tapered design and lasts longer. The tapered design will build up too much heat inside, which will eventually cause the components to burn "