This large Tesla coil is small and easy to carry. It will not be dangerous even it is directly plugged into 220V. If the power supply is 110V, a transformer must be used. Transformers are sold in the shop.

Large integrated heat sink, extremely low heating rate, integrated feedback and insurance on the circuit board, safe and secure. Dual mode arc extinguishing, you can input square wave music, you can also manually control, you can manually adjust the frequency and pulse width

Features: Small size, high power (Product Dimensions: 12 x 18 x 40cm); easy to use, arc extinguishing battery; multiple insurance, safety and stability; low heat, high stability

Note: The product is high voltage, the ground wire must be grounded the earth, or fire hose, lightning rod, radiator, or socket grounding wire. If don't know how to run the Tesla coil, please contact seller to get the instruction and video; Please do not approach it during discharge; please turn off the arc extinguishing after use, and then move the product

Significance and Value: This product can be used for teaching demonstrations, explaining the knowledge of Tesla coils, or as a desktop technology ornament. It is more exhibitable. It is also suitable as a popular science educational toy gift for students and children