Voltage Tester Pen Power Brightness LED Light Electrical Screwdriver

It is easy to detect the fire/zero line and know which line has a bad situation. Specifications: Quantity: 1pcs Color: transparent Material: PC+metal Measuring : 70- Item length: 155mm / 6.1in Screwdriver size: 17 * 4mm / 0.7 * 0.2in Battery: 3 * LR41, 1.5V, 25mAh Package size: 185 * 70 * 30mm / 7.3 * 2.8 * 1.2in Package weight: 30g / 1.1ounce