DIY Kit LED LM317 Adjustable Voltage Regulator Step-down Power Supply Module Set

Home Electronic Component Chips Sensor Arduino Module Raspberry Pi DIY Kit LED LM317 Adjustable Voltage Regulator Step-down Power Supply Module Set Popular Popular Product Introduction Features: 1.Brand new and high quality 2.Overheat overcurrent short circuit full protection. 3.The use of stable and reliable 4.With LED display 5.Suitable for electronic production DIY enthusiasts 6.Welding convenient and simple installation 7.Regardless of the positive and negative input, compatible with 27V AC or 40V DC or less 8.Circuit board size:58*42mm NOTE: In order to maintain good regulation characteristics, please ensure LM317 chip input and output pressure of about 3V; when using a large current, it is recommended to increase the area of heat sink or cooling fan. Package Included: 1 set LM317 Adjustable Voltage Regulator Step-down module DIY Kit Payment Shipping Refund Payment We accept PayPal only. But we only Accept your Ebay Address ,Please Make sure it’s 100% right. Payment must be received in 5 business days of auction closing. Please leave note for your special request (e.g. Colors or Size) in PayPal when you pay the order. Any special request cannot be accepted after 24 hours of payment, because most of orders will be processed instantly and same day dispatched. Shipping We maintain high standards of excellence and strive for 100% customer satisfaction! Feedback is very important to us. We request that you contact us immediately BEFORE you give us neutral or negative feedback, so that we can satisfactorily address your concerns. Refund All package need to wait 30 days (US only n eed 7-10 days) , Please take care it.Less than 30 days,we can’t take a refund . If the item is defect when you receive it or you are not satisfied with it, please return it within 14 days for a replacement or money back. But the items must be back in factory condition. Please contact us and double check the return address before you return it. If is item is defective in 12 months, you can return it to us. We will send you a new replacement after receiving the defective item. On Apr 26, 2024 at 12:12:46 PDT, seller added the following information: