Condition: New This module is a DC 3.7V to 1800V pulse boost converter. It can operate continuously with a maximum discharge distance of approximately 1.5MM. Input voltage: 3-4.2V Input current: up to approximately 2A No-load current: 130MA (at 4.2V) Output voltage: 1800V (output voltage decreases with lower battery voltage) Dimensions: 2.6x4.1cm/1.02x1.61inch Color: As shown When a 3V voltage is input, the output is approximately 1500V. Inputs of 3.7V and 4.2V yield an output of approximately 1800V. This is a high-voltage, low-current, low-power boost module. To increase the instantaneous discharge current, a large-capacity, high-voltage capacitor can be connected in parallel to the output. The output circuit is a voltage doubler rectifier. The board includes a high-voltage discharge capacitor (1800V 223). The integrated high-voltage capacitor may retain a residual charge after use. This is a high-voltage device; please exercise caution and pay attention to safety during use. Package includes: 1 x Voltage Booster Module