2pcs High Voltage Generator 3V-6V to 400kV Step-up Power Module Transformer

AEDIKO 2pcs High Voltage Generator DC 3v-6v to 400kV 400000V Boost 400kv

2 Pcs High Voltage Boost Module DC 3-6V to 400kV Step-Up Power Supply Board Kit

2pcs High Voltage Generator - Step-Up Power Module 3V-6V to 400kV Transformer

Lightweight 2pcs High Voltage Module: 400kV Output Ideal for Science Projects

2pcs High Voltage Power Module - 400kV Transformer for Electronics & Science

Dual High Voltage Generator - 400000V Step-Up Module for Science Experiments