Safety material Made of PA66 nylon with high quality flame retardant insulation. The guide strip is electrolytic copper with surface tin plating. Provides long life, corrosion resistance, aging resistance, high temperature resistance, insulation and flame retardancy. Lever wire connectors operate at ambient temperatures up to 105 C and offer improved conductive properties. Universal compatibility Widely suitable for connecting any combination of solid, stranded, and flexible copper wires. Ideal for compact and complex applications. Accepts single-strand hard wire 0.08–4 mm2 (28–12 AWG) and multi-strand flexible copper wire 0.08–2.5 mm2 (28–14 AWG). Compatible with most common household wiring: sockets, switches, cars, loudspeakers, lamps, electrical boxes, chandeliers, fan controls, and more. Reliable and reusable Inline lever wire connectors can be managed separately for different wires to avoid short circuits and fires from aging of the staggered wire bundles. Reusable and removable when not in use, enabling multiple deployments without replacement. Easy to operate Strip wire to 9–10 mm, open the clamp with the lever, insert the wire, and close the lever. This design reduces wiring time significantly compared with traditional electrical tape and butt connectors, improving efficiency. Practical uses - Replacing or upgrading wiring for ceiling lights, chandeliers, or ceiling fans in homes. - Wiring car audio, amplifiers, or speaker systems where compact, reliable connections are needed. - Any DIY project or appliance repair requiring quick, reusable wire splices in tight or complex harnesses.