LM317 Adjustable Voltage Regulator Power Supply Board Digital Voltage Display

Features: Can be connected to the load within 2A, AC or DC input voltage, the output voltage is DC 1.25V-28V continuously adjustable. Adopt high-frequency power supply dedicated capacitor, more stable performance. Using duplex adjustment potentiometer. Add digital tubes to display output voltage, the output voltage is clear at a glance. Military grade double-sided circuit board. With a heat sink for better heat dissipation. Specification: Input voltage: DC 3-30V / AC 3-20V Output voltage: DC 1.25V-28V Output current: Max. 2A Board size: 72*39*28mm / 2.83*1.53*1.1in Mounting size: 65*32mm / 2.56*1.26in Mounting hole: 3mm Weight: Approx. 43g / 1.5oz Package list: 1 * Adjustable Voltage Regulator Note : 1. Because the working voltage of digital tubes is 4.5V, it displays normally only when the voltage is higher than 4.5V. 2. When inputting 5V, it can output 1.25-2V and won’t output a higher voltage. All the items will be dispatched within one business day by Airmail after the payment is clear. Most times you will receive your order within 10-30 business days after we transfer your package to the delivery company. We cannot guarantee the delivery timeframe if the post office has any unexpected delays due to holiday, weather, customs, or other conditions. Some countries like Russia, Brazil, or some European countries may take up to 50 days or longer for delivery. We appreciate your patience if you haven’t received items in 30 days(Russian customers may need more patience by reason of the local delivery system and/or customs). If you are concerned in any way, please feel free to contact us via ebay message instead of leaving negative/neutral feedback or opening a dispute . We will do our best to solve any problem(resend or refund any missing item). Customs duty is obligation and liability of citizen s in your country, so buyer should be responsible for any tax and custom duty incurred. Generally, the delay or failure delivery is sometimes caused by the policy of different customs. 1. Our listing price includes the value of goods,packaging cost,and export taxes,not including international duties. 2. duties,taxes,and charges are not included in the item price or shipping fee. 3. T he duties are buyers’ responsibility .Please check with your country’s customs office determine what these additional costs will be prior to your purchase. 4. All disputes arising from the duties will be submitted to ebay for solution. 1. Any questions, pls. contact us via ebay message or email us. We will reply your message within 48 hours. If you do not receive our reply within 48 hours, pls. post a message again because sometimes our message system may block some emails. 2. If you are satisfied with our service, pls. kindly leave us a positive feedback and give us the Detailed Seller Rating with all ” 5 ” in very area 3. Our aim is to provide Level Customer Service, your recognition will encourage us greatly and serve you better. We strive to keep all our customers satisfy. We will do our up most to exceed your expectations in customer service, communication and dispatching of your orders.