Usage Tips: The high-voltage capacitor discharge pen features a constant current discharge design and is suitable for both AC and DC applications without the need to distinguish between positive and negative poles. The gold-plated extra-tip test pen is securely connected and adaptable to various operational needs. During normal discharge, the green status indicator light remains on. When the light turns off, it indicates that the energy stored in the capacitor has been discharged to a safe level. This tool is ideal for power supply maintenance and the safe discharge of high-voltage energy storage capacitors. Equipped with a 1200V high-power IGBT tube with voltage resistance, it enables rapid constant current discharge regardless of polarity, without ignition. Supports discharge for capacitors up to 5000uF. The discharge current ranges from 80 to 100mA, allowing safe one-time discharge of a 4700uF large capacitor (e.g., 320V 1000uF discharged in approximately 6 seconds, 320V 2000uF in about 10 seconds). Note: This model supports stable operation within DC 1000V/4700uF. In circuits with multiple energy storage capacitors connected in parallel, the total capacitance should be estimated. Continuous discharge is not recommended. Material: Plastic + Metal Color: As shown Package Contents: 1 x Capacitor Discharge Pen Note: Only the items listed above are included; other products are not included. Lighting effects and display differences may cause slight variations in the color shown in the image compared to the actual item. Measurement error allowance is +/- 1-3cm.