1、Coils can transmit electricity wirelessly, light up fluorescent lights, and have a wonderful arc, powerful and practical 2、You can use the coil to do a lot of very interesting scientific experiments, helps a lot 3、The coil is used to generate high frequency alternating current with ultra high voltage but low current, very stable 4、The advantages of coil kit 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, easy to use 1 x Module3 x Screw3 x Standoff1 x LED Light Item Type: Mini Coil KitMaterial: PCB, copperPurpose: Wireless transmission of power, light up fluorescent lampsInput 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