power module for arduino

Precision 5V700mA 3.5W Isolating Switching Power Supply Module AC DC Buck Module 220 to 12V Power Supply

Working temperature: -20 degrees to 70 degrees, high-end green gold capacitors with a temperature resistance of 105 degrees 10,000 hours, more than 5 years at 70 degrees, about 20-50 years at room temperature (not recommended above 70 degrees), output filtering High-quality solid capacitors