Features The coil is used to generate high frequency alternating current with ultra high voltage but low current, very stable The advantages of coil kit are low noise, high efficiency, and long life, you can use with confidence DIY parts can increase hands on ability, including a variety of accessories, easy to use You can use the coil to do a lot of very interesting scientific experiments, helps a lot Coils can transmit electricity wirelessly, light up fluorescent lights, and have a wonderful arc, powerful and 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 Module3 x Screw3 x Standoff1 x LED Light Note: This coil will send a large amount of unseen current to the surrounding local environment. Although it is certainly not dangerous to humans, it will actually damage sensitive electronic products within half a meter. Therefore, be sure to keep this in mind when supplying power to the coil, and keep your cell phone, camera, MP3 player or any other sensitive electronic products at least 1 meter away. Package List 1 x Module 3 x Screw 3 x Standoff 1 x LED Light