brand new and high quality<br> <br> Features:<br> for DC 3.7V Boost 1800V, Pulse Boost Module<br> Can work continuously, the maximum discharge distance is about 1.5MM<br> Input voltage: 3-4.2V<br> Input current: up to about 2A<br> No-load current: 130MA (4.2V voltage)<br> Output voltage: 1800V (battery voltage is low, output voltage will also become lower)<br> Dimensions: 2.6x4.1cm/1.02x1.61inch<br> Color: As shown<br> Quantity: 1 Pc<br> Precautions:<br> When the 3V voltage is input, the output is about 1500V, the 3.7V input is about 1800V, and the 4.2V input is about 1800V.<br> This is a high-voltage, low-current, low-power boost module. If you want to increase the instantaneous discharge current, you can output a large-capacity, high-voltage capacitor in parallel (recommended to use 4 CB65 capacitors for air conditioners and 450V for series connection. Size you choose according to your needs)<br> Output circuit is voltage doubler rectifier.<br> With high voltage discharge capacitor, 1800V 223.<br> The board has a high-voltage capacitor, which may leave excess capacitance after use.<br> High pressure danger, use need to pay attention to safety.<br> <br> Package includes:<br> 1 x Voltage Booster Module (without retail package)