Features: Pen type designs and portable size, it is convenient for you to carry and for daily use. This capacitor discharge pen supports capacitor discharge 1000UF or 5000UF, which can quickly release the remaining power of high-voltage capacitor, but cannot for discharge the battery. It can quickly release the residual power of capacitors generated during production, testing and maintenance of various electronic products (such as switching power supplies, digital cameras, mobilephones, TV power supplies, and so on.) to protects operators from electric shock and products from damage. The discharge pen can automatically and intelligently identify when discharging, without distinguishing positive and negative electrodes, constant discharge, no sparkings. With the LED indicators light, when the indicators light is on, it indicates that the discharge is in progress, and when the indicators light is offs it , the voltage is about 9V and the discharge is finished. Specifications: Material:ABS,Metal Type:1000UF , 5000UF Package Includes: 1Piece Capacitor Discharge Pen note: Please allow 1mm errors due to manual measurement. Due to the differences between different monitors, the picture may not reflect the actual color.