Wide application This capacitor discharge pen is designed for electronics production, testing, and maintenance. It rapidly releases residual voltage from capacitors to prevent electric shock hazards and potential equipment damage. It is compatible with AC8380V and DC12540V power supplies. Onehanded operation The compact design enables easy singlehanded use, making it a practical tool for technicians performing switching power supply repairs or other tasks that require controlled handling. Dual LED indicators Two LED lights clearly show the discharge progress. Red indicates voltage, while green indicates a lower voltage around 42V. When the green LED turns off, discharge is complete with an approximately 6V residual voltage. Flexible adjustable probe The discharge tool features an elastic probe that resists crushing and offers adjustable needle distance, providing versatility for different capacitor types and configurations. Use scenarios Electronics production and testing lines: safely discharge capacitors before maintenance or board handling to reduce shock risk and protect components. Switching power supply : quickly and safely discharge voltage rails to enable probing, testing, or rework with one hand. Field service and technician workflows: reach confined spaces and awkward layouts with the adjustable probe while maintaining safe discharge procedures.