Power Supply Module 250W Constant Voltage Constant Current Aluminum Substrate

$6.30

Power Bank Module 3.7V to 5V 1A with Charge/Discharge Protection

$1.50

Power Bank Box DIY Kit 18650 Lithium Battery Case Transparent

$11.50

Aluminum Substrate 250W 10A Boost Power Supply Module

$9.50

Power Bank Circuit Board 5V Boost PCB DIY Kit

$9.90

DC-DC Step-Down Module 5V 3A Fixed Output

$3.00

4-Cell Lithium Battery Protection Board 14.8V 16.8V 30A with Auto Activation

$4.80

LiFePO4 Battery Protection Board 3.2V Single Cell 2A with Overcharge and Short-Circuit Protection

$1.00

DC-DC Adjustable Power Board XL6009 Step-Up/Step-Down Module 20W Low Ripple

$5.60

Power Board AC 220V to DC Step-Down Transformer Module

$2.20

Step-Down Power Module 5A Constant Voltage Current LED Driver

$6.50

DC Voltage Regulator Board AMS1117 Step-Down Power Module 3.3V

$0.90