1. Drive and test ignition coils: Gasoline vehicles, natural gas vehicles, motorcycles, ignition, group ignition, coil type, module type, etc. 2. Drive and test fuel injector: Gasoline 12V car injector, vehicle 12V 24V injector. 3. Test IGBT single tube, IGBT module, MOS tube, MOS tube for new energy vehicles. 4. Drive and test types of electromagnetic valves (duty cycle controlling type), Fuel metering valve, etc. 5. Test types of solenoid valves: car solenoid valves, motorcycle solenoid valves, construction machine solenoid valves, etc. Model:QD300 Main Functions: Drive and test types of duty cycle-controlled motor, Urea pump motor, duty cycle actuator, etc. Drive and test Idle speed stepping motor, instrument stepping motor, Headlight steering stepping motor, motorcycle stepper motors, etc. Output PWM signal, frequency, amplitude, duty cycle adjustable hall signal, types of duty cycle type sensors: air conditioning pressure sensor (duty cycle type), air flowing meter (duty cycle type), etc. Operating power supply: 12V-24V, current 10A. Recommend using Car battery as power supply. Or using regulated 12-24V, 10A power adapter. Have polarity-reverse, over-current protection. Electromagnetic coil driving current range: 0-3A, output current 3A. Output frequency range: 1Hz-100KHz. Duty cycle adjusting range: 1%-100% Adjustable voltage range: 1.2V-12.0V. Hall signal output amplitude voltage: 1.2V-12.0V. Please note:the physical slightly color difference or difference, does not affect the use, please do not mind, thank you! Colour:Black Material:Plastic Package Contents: 1 * QD300 Automobile Ignition Coil Tester set Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.