Features 1、Output Protection: With output protection, there is a self recovery fuse on the board for short circuit protection. 2、Convenient Operation: The output interface adopts sound wiring clip, which is very convenient for wiring test. 3、Non Polarity Input: The LM317 adjustable regulated power supply kit has a rectifier circuit input and can be input without polarity. 4、AC DC Input: AC and DC input, the board is equipped with a new 2200UF large capacity filter capacitor. 5、High Quality Materials: Made of high quality ABS material, this adjustable regulated power supply kit is strong, durable and has a long service life. Specification Item Type: Adjustable Regulated Power Supply Kit Material: ABS Board Size: Approx. 60 x 33mm / 2.4 x 1.3in DC Input: 5 to 35V AC Input: 6 to 25V Maximum Output Current: 1A Package List 1 x Adjustable Regulated Power Supply Kit