Electromagnetic launcher is a technology that uses electromagnetic force to accelerate the launch of objects, using electromagnetic pulses to accelerate the projectile to a high-speed state, and then launch it at a very high speed. The upgraded electromagnetic mitter kit not only adds a charging circuit but also a level indicator circuit, making the electromagnetic mitter charge faster, have a longer range, and emit faster. With a level indicator circuit, it is more convenient to observe the charging condition. The bottom battery box design is beautiful and convenient, with a more beautiful appearance that does not require opening the outer shell for easy battery replacement. This kit is suitable for welding exercises, electronic experiments, and DIY enthusiasts. Working voltage: 3V. Power supply method: 2 batteries, DC 3V (requires self provided batteries). Accumulated current: 50-65mA. Emission current: 70-80mA. PCB size: A-board 85x78mm; B board 50x53mm Usage method: 1. Turn on the power switch (ship type switch K1), and the green LED light up. 2. Wait for about 10-, the blue light light up, and the charge energy accumulate to about half. 3. Insert the projectile into the rear of the . Lower the launch button (circular button K2), the shell flies out of the , and the launch is completed The main technologies of electromagnetic mitters include: Power system: Provides high voltage power supply to generate powerful electromagnetic forces. Common include capacitors or battery packs. Electromagnetic accelerator: an electromagnetic device used to accelerate the launch of objects, consisting of a coil and a bracket. When energized through a coil, a strong magnetic field is generated that acts on the emitting object, causing it to accelerate. Control system: used for prec control of the firing process of electromagnetic , including triggering firing and monitoring firing speed. Be careful: When the electroma