5V 1W Super Mini SelfExcitation Coil for Wireless Transmission Experiments
Product Information
About
Small Size: This is the world’s smallest self-excitation coil—measuring under 1.5 inches tall—with USB-powered operation via any standard 5V source; no external power adapter or wiring needed, making it ideal for compact lab setups, classroom demos, and portable wireless energy experiments.
High-Frequency Output: Generates high-voltage, low-current, high-frequency AC output (up to ~200 kHz) when powered by a 20W 5V supply; enables visible corona discharge and stable arc spray up to 1mm when a conductive object (e.g., stainless steel ball) is near the top terminal—safe, repeatable, and visually striking.
Wireless Lighting Ready: Instantly lights neon bulbs and fluorescent tubes without physical contact—demonstrating resonant inductive coupling and wireless power transfer principles; perfect for STEM e on, physics labs, and coil fundamentals.
Plug-and-Play Setup: Includes OTG cable, stainless steel ball, and neon light—everything needed to start experimenting immediately; simply plug into a USB power bank or wall adapter, place the ball on top, and observe electromagnetic field effects in real time.
Safe & Controlled Discharge: Produces no independent air arcs; discharge only occurs when a conductor is within ~1mm—eliminating shock and enabling hands-on interaction; works reliably with human body acitance, so touching nearby surfaces enhances coupling without altering function.
Product Description
Specification Features: 1. The world's smallest coil. 2. Using a coil can generate high voltage and low current, high frequency AC power, which will produce magical effects. 3. This product uses a 20w power supply to generate high frequency, high voltage and low current arc spray effect for the coil. 4. Fluorescent lights can be easily turned on, various wireless transmission experiments. 5. 5V 1W Coil A-Class Super Mini Coil, no power supply. Specifications: Model: Coil Output voltage: DC5V Power: 20w Package List: 1 x Coil 1 x Stainless steel ball 1 x Neon Light 1 x OTG Cable Note: 1. Ultra-small size, the USB port can be connected with any 5V power supply. 2. Does not produce an independent air discharge arc, a good conductor near the top can generate an arc of about 1 mm, no electric shock, very safe. 3. It is not necessary to pull the coil to the coil or the hand when working. Because the hand acts as a good conductor, the coil will form a good loop. For the coil with a large current, the demonstration effect Change or not. Please note. How to Use Package List Note
