Short-circuit and globular transfer are two GMAW metal transfer modes that differ significantly in how metal is transferred, the heat input involved, and where they can be used effectively. Short-circuit transfer relies on repeated electrical shorts to transfer metal at low current and voltage, making it suitable for thin materials and out-of-position welding but prone to lack of fusion in structural applications. Globular transfer uses higher current and voltage to transfer large droplets of molten metal, producing deep penetration but also excessive spatter, fume, and arc instability. While globular transfer can be useful on thicker sections and offers lower gas cost options, both modes have limitations that restrict their suitability in high-quality production welding. Understanding these differences is essential for selecting the appropriate transfer mode and avoiding hidden weld quality issues.