Feature: 1. Adopt for tesla coil principle, output high-voltage pulses, powerful discharge intensity. 2. Compact size, high efficiency, stable and professional performance, dependable to use. 3. The high-voltage module/generator made by the circuit composed of components, can be used as a high-voltage source for students' science experiments/electronic instruments/negative ion generators/science small productions. 4. The input voltage is DC 3.7-6V and will output DC800KV high voltage. 5. Built to meet standard specification, strictly follow factory quality control. Specification: Condition: 100% Brand New Item Type: High-Voltage Generator Material: Plastic Color: As picture shown Model: HX-901 Length: Approx. 88m/3.5in Diameter: Approx. 26mm/1in Cut Surface Diameter: Approx. 24mm/0.9in Input Voltage: DC3.7-6V Output Voltage: DC800KV Current: Input 4A, output 0.5A Line Length: Input about 10cm, output about 10 cm Structure: Integrated housing Discharge Distance of the Two Poles: Approx. 0.5-1.5cm (exceeding it will be easily damaged) Uses: Commonly used in high-voltage production, electronic DIY, product development, high-voltage electronic anti-theft, etc. How to Use: The two poles of the high-voltage output terminal(monochrome thick wire) are fixed within the specified discharge distance, and the low-voltage input terminal(two-color thin wire) red wire positive electrode and green wire negative electrode are connected to the battery to produce high voltage arc work. Input Requirements: This product does not require an auxiliary circuit, and can be used directly by connecting the battery. The input terminal is connected to a single 3.7V lipo battery (such as 18650 battery) or nickel-cadmium/nickel-hydrogen battery pack, 4V or 6V lead-acid battery, etc. (6V battery can be for best results). Package List: 1 x High-Voltage Generator Note: Precautions for Using the Module:1. The high-voltage module should avoid being energized when the high-voltage is no-load. Before powering on, the appropriate distance of the high-voltage line end must be adjusted. The arcing distance of the high-voltage line is proportional to the battery voltage and capacity used.2. Experiment from short to long when testing the arc distance. It is strictly forbidden to exceed the maximum arc distance when energized, because the high voltage energy cannot be released and the module is easily damaged.3. The power of the module is large, and the internal is not suitable for heat dissipation, so it is not allowed to work for a long time.4. The method to judge whether the battery capacity can drive the maximum output power is to measure the battery voltage when the arc is drawn. If it is around 6V, it can output the maximum power.5. The two sections of small capacity lipo batteries are connected in series at 7.2V. The measurement voltage has dropped to about 4V in the arcing state. The smaller the capacity, the lower the voltage. Therefore, it is recommended to use lipo batteries above 2000MA, and it is best to match batteries above 4000MA if possible.