Gently fasten the Fluker's incandescent bulb intoa Fluker Clamp Lamp or Hood or any UL approved incandescnet fixture. do not plug light fixture into an electrical socket until bulb is fastened firmly to fixture. Place light fixture outside of reptiles's enclosure. NEVER place the light fixture inside the enclosure. Reptiles can develop life-threatening thermal burns from contact with an exposed light bulb. Multiple incandescent lights may be required to establish an appropriate ETR. A Fluker's thermometer can be used to monitor temperature within the reptile's environment. Reptile behavior is directly tied to photoperiiod (light cycle), so it is important to provide appropriate intervals o flight and darkness. Fluker's recommenda a 12-hour day/ 12-hour night light cycle. A Fluker's Daytime bulb should be used during the daytime cycle.