Icstation DC 3.7V-7.4V to 1000KV High Voltage Generator Transformer Boost Inverter Module 89X26mm DC 3.7-7.4V to 1000KV high voltage generator module Based on the tesla coil principle, output high voltage pulse current with simple circuit design, easy to use Input voltage: 3.7V-7.4V, Input Current: 2A-4A, Output Voltage:1000KV(approx.) Two Polarity Arcing Distance: 1.5cm-2cm, Module Size:89X26mm/3.50X1.02inchL*D) Ship it by USPS with tracking information and 7-17 days delivery time usually