Part number:1 Item Weight:100 g Product Dimensions:2 x 2 x 2 cm; 100 Grams Batteries Required?:No Welcome to my store , Hope you have a pleasant shopping trip!Description: 1>.LM317 adjustable DC voltage regulator diy kit with fixed three-terminal voltage regulation circuit, easy to use; 2>.Wide voltage adjustment range, good voltage stabilization performance, low noise and high ripple suppression ratio; 3>.Adjustable 3-terminal positive voltage regulator; 4>.Wide output voltage range; 5>.With voltage measurement function.Parameter: 1>.Input voltage: AC220V 2>.Output voltage: DC 1.2-12V 3>.Work Temperature:-40~85 4>.Work Humidity:5%~95%RH 5>.PCB Size: 58*55mm 6>.Shell size: 101*67*50mmPackage List: 1 x DC Power Supply Board Notes:1. Due to the difference between different monitors, the picture may not reflect the actual color of the item. We guarantee the style is the same as shown in the pictures.2. Please allow 1-2cm slight dimension difference due to different manual measurement. About this item LM317 Adjustable DC Voltage Regulator Diy Kit With Fixed Three-terminal Voltage Regulation Circuit, Easy to Use. Adjustable 3-terminal Positive Voltage Regulator. The Power Supply Voltage Is DC 1.2-12V, and A Stable Power Supply Is Required. Wide Voltage Adjustment Range, Good Voltage Stabilization Performance, Low Noise and High Ripple Suppression Ratio; SHOP WITH CONFIDENCE: To provide you with the highest quality service, If you have any question, please feel free to contact us.We will provide after-sales service until you are satisfied. LM317 Adjustable DC Voltage Regulator Diy Kit With Fixed Three-terminal Voltage Regulation Circuit, Easy to Use. Adjustable 3-terminal Positive Voltage Regulator. The Power Supply Voltage Is DC 1.2-12V, and A Stable Power Supply Is Required. Wide Voltage Adjustment Range, Good Voltage Stabilization Performance, Low Noise and High Ripple Suppression Ratio; SHOP WITH CONFIDENCE: To provide you with the highest quality service, If you have any question, please feel free to contact us.We will provide after-sales service until you are satisfied.