Using this lamp is easy. First, decide where to place it at one end of the terrarium. Make sure there's a climbing structure for your pet. Remember, don't put it inside the cage to protect your pet from burns. You can adjust the light and heat with the dimmer switch. When it comes to maintenance, keep the reflector clean to ensure maximum output. Also, check the ceramic socket regularly for any signs of wear. If you need to change the bulb, always turn off the lamp first. With the 5.5' size, use bulbs up to 75 watts, and for the 8.5' size, you can use bulbs up to 150 watts.