Do Komodo dragons need sunlight?

Hello there, I'm curious about something related to Komodo dragons. As we all know, these magnificent creatures live on the Indonesian islands and are renowned for their impressive size and hunting abilities. But my question is, do Komodo dragons actually need sunlight to thrive? I've heard that some reptiles rely on sunlight for various physiological processes, so I'm wondering if the same applies to Komodo dragons. Could you shed some light on this topic for me? Thank you in advance!