Yet, the spectrum of light extends beyond what our eyes can perceive. From the potent gamma rays to the familiar X-rays, and then to ultraviolet light, the spectrum is vast. Visible light occupies only a minuscule portion of this spectrum, nestled between ultraviolet and infrared light. Infrared light, often associated with warmth, continues the spectrum down to microwaves and ends with the gentle radio waves. For the purpose of reptile care, our focus narrows down to three crucial components: ultraviolet light, visible light, and infrared light.