Descriptions:This Voltage Regulator Rectifier features 5 pin terminals,rectangle shaped.Bridge as a power components, applied to various power equipment.No manual attached ,please make sure you know how to use it befor buying , Thank you .Specification: Pin Number: 5Hole Distance: 67mm/2.6"Dimension: 84 x 62 x 30mm/3.3" x 2.4" x 1.2"(L*W*T)Package includes:1 x Regulator Rectifier.