The IG-618GD Gel Documentation System operates based on UV fluorescence and visible light imaging technology. It is designed to capture high-resolution images of DNA, RNA, or protein bands stained with fluorescent dyes (e.g., Ethidium Bromide, SYBR Green) or colorimetric stains (e.g., Coomassie Blue). The UV light excites the fluorophores in the gel, which emit light captured by a high-resolution camera, allowing visualization and analysis.