1.PCB board factory test stand test to ensure that the physical connection is normal
2 the oversized pad designed specifically for DIY enthusiasts
3 in the welding process requires attention to the light emitting diode
Please dl the file from links: http://pan.baidu.com/s/1o6ovdQa

Technical Details

Size (LWH): 5.7 inches, 4.1 inches, 1 inches
Product Details
Product Dimensions: 5.7 x 4.1 x 1 inches
Shipping Weight: 0.15 pounds (View shipping rates and policies)
ASIN : B00RFLM50A