Description: Using military-grade 1.6MM double-sided glass fiber board Large factory custom inductance, consistent performance parameters more stable (30MM large magnetic ring, using 1.2MM pure copper wire system) All resistors using 5 ring tight resistance (5 ring has a small precision resistance error and work more stable) All the excessive current adds tin in the bottom of circuit The general use of 12-30V DC power supply, the current also need more than 10A is more appropriate, because the driver board is working in the zero voltage switch state (Zero Voltage Switching), its efficiency is the highest, the other drivers are unmatched Specification: Material: PCB Circuit Board Size: 7.4x7.7cm/2.91x3.03 inch Package Includes: 1 Piece ZVS Tesla Driver Board