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USB QC3.0 QC2.0 DC-DC Buck Converter Charging Step Down Module 6-32V 9V 12V 24V to Fast Quick Charger Circuit Board 3V 5V 12V

DC36-86V Electric Vehicle Battery Isolation Step Down 5V3A USB Anti-interference Regulated Power Supply Module

Dual Two Mode PWM Square Wave Rectangular Wave Signal Generator Control DC Stepper Motor Driver Board Adjustable Pulse Module

15pcs BTA41-600B BTA41-600 Triac 600V 40A BTA41600B BTA41600 BTA41 TO-3P 40A IC