This study presents an appropriate filler metal or welding electrode to join aluminum alloy (AA2024-T3) sheet of 3. 2 mm thickness with a square butt joint using Gas Tungsten Arc Welding (GTAW) process. This process was carried out at three different welding currents with three various filler metals: ER4047 (12% Si). ER4043 (5% Si). https://lockdownsecuritycanada.shop/product-category/sealed-beam-conversion-assembly/