Using this Pangea Deep Heat Projector for your reptiles is easy. First, make sure you have a suitable ceramic fixture like the ones mentioned in the product description. Then, install the bulb in the fixture and connect it to a power source that matches the USA outlet and voltage requirements. You can keep it on 24/7 to provide continuous heat for your reptile. Remember, this projector is for ceramic fixtures only, so don't use it with other types of fixtures. To maintain it, check the bulb regularly for any signs of damage. If you notice any cracks or if the bulb stops working, replace it right away. Also, handle the packaging with care during shipping as the bulb is delicate. With proper use and maintenance, this heat projector will serve your reptile well for a long time.