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【Easy to Adjust】LM317 power regulator can be connected to the load within 2A, AC or DC input voltage, the output voltage is DC 1.25V-28V continuously adjustable. 【Professional Made】The voltage regulator power module adopts high-frequency power supply dedicated capacitor, more stable performance. Used duplex adjustment potentiometer. 【Professional Design】Voltage buck converter voltage regulator add digital tubes to display output voltage, the output voltage is clear at a glance. Practical and reliable, you can buy and use it with confidence. 【Superior Performance】Adjustable voltage regulator is military grade double-sided circuit board. With a heat sink for better heat dissipation. Bring a comfortable and convenient experience to your life. 【Service Guarantee】If you have any question or any unsatisfactory about the 317 adjustable power supply, you can contact our customer service at any time, our team will response you in 24 hours.