BXL series: this is the Lucas series of products, insulating plastic injection molding in the positive pole plate, the power of this product is small and its rectifier bridge W output connection points are soldered with a soldering iron solder wire welding; Lucas series of compact, small size, light weight, easy to install and maintain, the pole plate is made of aluminum material is usually better heat dissipation; connecting piece of strange design, complex structure is not good to make.