Feature: 1. Coils can transmit electricity wirelessly, light up fluorescent lights, and have a wonderful arc 2. You can use the coil to do a lot of very interesting scientific experiments, very useful 3. The coil is used to generate high frequency alternating current with ultra high voltage but low current 4. The advantages are low noise, high efficiency, and long life, you can use with confidence 5. DIY parts can increase hands on ability, including a variety of accessories, very practical Specification: Item Type: Mini Coil Kit Material: PCB, copper Purpose: Wireless transmission of power, light up fluorescent lamps Input Voltage: DC 9-12V (can be started with a 9V battery, but if there is an arc, the working voltage needs 12V) Input Current: 1A or above (2A recommended) PCB Board Size: Approx. 40 x 31mm / 1.6 x 1.2in Package List: 1 x Module 1 x Coil 2 x Capacitance 1 x Inductance 2 x Resistance 2 x Indicator Light 1 x LED Light 1 x Switch 1 x Power Interface 1 x Heat Sink 4 x Standoff 5 x Screw