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5pcs 5V-36V to 5-12V Buck Converter Power Wide Voltage Adjustable Step Down Module DD40AJSA

3pcs Voice Control Delay Module Direct Drive LED Motor Driver Board DIY Small Table Lamp Fan Electronic Building Blocks

3pcs Low 3.5ohm PCA9306 Dual Bidirectional Voltage-Level Conversion Module Converter

5pcs LCD Display Timer Relay Module DC6-30V Cycle Timing OFF Trigger Delay Switch DC AC Universal Conduction

25Pcs 12x12mm Key Switch Module Touch Tact Switch Push Button Non-locking With Cap Red/Black/Yellow/Green/Blue