3 reptile heat light fixtures all working The ReptiKing Reptile Light Fixture is a 3-pack of standard domes specifically designed for reptile basking bulbs. With a size of 5.5 inches, this light fixture provides the perfect fit for creating a warm and comfortable environment for your pet reptiles. The brand ensures quality and reliability, making this product a must-have for any reptile owner looking to enhance the lighting in their enclosure. Fast shipping guarantees that you can get this essential supply quickly and easily.