Traditional wiring VS Connecting Terminals Traditional wiring: Easy to corrupt and string electricity after long-term using. And high temperature apt to leak electricity and even cause fire. Connecting Terminals: Terminals are convenient and regular, leakage-proof, heat-resistant, more flame-retardant materials to protect family safety, refuse to accept security risks. Simple to use & Safety & Maintenance free Just plug in, don't need an electrician,You can operate it yourself &Insulation Materials,No string of electricity, no leakage Selecting the best flame retardant insulating material modified nylon PA6.6.There is no need to worry about corruption Professional interface design and wide wiring range There is no need to worry about the wire diameter type and uniform standard of wiring, making wiring simpler and eliminating safety hazards Spring connection Compressing the conductor to a specific area of the guide bar, the conductor is embedded into the tin coating surface of the guide bar through a higher pressure to provide higher air tightness Practical & Space Saving Lever-Nuts adopt special and scientific design, which will save space effectively Minimize space consumption in the junction box by 40% compared to 222 Series Every junction independent shrapnel, different wire managed separately