1. Drive and test ignition coils: including standalone, coil-on, and modular types. 2. Drive and test injectors: including 12V injectors for gasoline vehicles and 12V and 24V injectors for vehicles. 3. Drive and test solenoid valves and metering valves controlled by duty cycles. 4. Drive and test motors and urea pump motors controlled by duty cycles. 5. Drive and test idle stepper motors, instrument stepper motors, and headlight steering stepper motors. The Hall signal output frequency, amplitude, and duty cycle are adjustable, allowing it to various duty cycle sensors, such as air conditioning pressure sensors (duty cycle type) and air flow meters (duty cycle type). Product Specifications: Model: QDB-5A Power Input: DC 8-28V Output Power: 0-2.5A VADJ Output: 0-1.5A Digital Multimeter: DC 0-30V/0-1M Pulse Width Modulation: 1-100kHz/0-100% Stepper Motor:Maximum 15A Dimensions:157x98x30mm Weight per Set:Approximately 0.38kg Color:As Shown Material:plastic Package Contents: 1 * QDB 1 * power cord 3 * test cables 4 * single plugs 1 * idle stepper motor plug 1 * stepper motor welding cable 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.