[DESIGN PRINCIPLE] The electromagnetic swing kit operates on the principles of electromagnetic induction, harnessing the fascinating properties of Hall effect sensors. As the magnetic field fluctuates, it propels the pendulum needle into a mesmerizing dance. [RGB LED LIGHT]Adding to its allure is the inclusion of a dynamic RGB LED light. This feature not only enhances its functionality but also forms the swing into a captivating spectacle of light and color. With a spectrum of hues at its disposal, it paints the surroundings with a vibrant glow, enriching the visual experience. [SIMPLE INSTALLATION]The assembly process is straightforward, featuring uncomplicated components and clearly printed circuit boards. Product name: Electronic Swing DIY Welding Kit Working voltage: DC5V (5.5mm DC socket) Product function introduction: Hall sensor is a magnetic field sensor made according to Hall effect. When the magnet is above the Hall sensor, the Hall sensor detects the magnetic field, it output a low level, the triode Q1 no longer conduct, the tertiary tube Q2 conduct, in the conduction process, the current flows through the inductor L1 , produce a magnetic field in L1, the direction of the magnetic field is determined by the direction of the current flow in the coil, following the right-handed helix rule, when the coil's magnetic field and the magnet's magnetic field repel each other, the magnet be Push away, the magnet is pushed away, the Hall sensor no longer detect the magnetic field, it output a high level, Q2 is no longer conductive, and L1 on the residual potential dissipated by D1. Thus repeating, the electronic swing keep swinging. Colour:green+ parent Material:PCB+electronic components+acrylic Depending on the batch, the electronic components may be different, but s does not affect use.Without DC power cord Package Contents: 1 x DIY Electronic Swin