Handheld electric energy-saving lamp tester power supply energy monitor socket analyzer is mainly used to test the power, power factor, total power consumption, total test time and other items of energy-saving products. Connect a computer via the USB port to view test information and copy them to your computer, where you can then analyze the information. FEATURES The HP-9800 is a handheld preservation tester with the ability to test equipment through a continuous 20A current - it meets IEC, ANSI and JIS industry standards. -It can be tested for a long-time with stable performance. - Copy and analyze test data via USB connection. Specifications: New Factory model: HP-9800 Voltage: 100V-240V AC 50/60Hz Power: 2 seconds Tip: Please allow 1-3 cm measurement error. The photo may be slightly different from the actual product due to the color display of different monitors. Products include: - 1 X USB Power Tester - 1 X E27 Large Screw Lamp Holder - 1 X GU10 Lamp Holder Conversion - 1 X E14 Small Screw Lamp Holder - 1 X T8 Cable