This kit includes 10 compact wire connectors for , selecting the best flame retardant insulation material modified nylon PA66, which has a long service life, no corrosion, anti-aging and pressure . EASY TO USE - First remove the wire sheath (9~10mm), just push the orange clip up 90 slightly, insert the cable and turn off the switch. Instead of traditional electrical tape and intertwined butt connectors, technological innovation reduces wiring time by 70%. PRACTICAL - These wire connectors with 2 ports -4 ports are universal for hard and soft wires. You can use them to control multiple lights by one switch, 2 inputs 4 outputs. WIDELY USED - Universal connectors: They are suitable for solid wires with 0.5-4mm and for flexible wire with 0.5-2.5mm . It is widely used in building wiring where space is limited for all connections requiring. REUSABLE - Each connection terminal has a detection connection and can also be recycled. Each junction independent shrapnel, different wire managed separately, different diameter can be connected to safety. There is a test hole in each connector surface, Tip: bilateral pressure rod terminal, connect the positive pole, negative pole and ground of the power supply respectively.