SAFE - The kit includes 10 PC compact wire connectors, selected the best PA66 modified nylon flame retardant insulation material, long service life, no corrosion, anti-aging, 4KV pressure and electric shock. Easy to use - first remove the wire sheath (9~10mm), just push the orange clip 90 gently, insert the wire and turn off the switch. Instead of traditional electrical tape and intertwined butt connectors, technological innovations reduce wiring time by 70%. CONVENIENT - These wire connectors with 2 ports - 4 ports are suitable for hard and flexible. You can use them to control multiple lights with just one switch, 2 inputs and 4 outputs. Widely Used - Universal Connectors: They are suitable for 0.5-4mm/28-12 AWG solid wire and to 0.5-2.5 mm/28-14 AWG flexible wires. It is widely used in building wiring where space is limited and cannot meet all connection requirements. Reusable - Each terminal block has a sense connection and can also be reused. Each connector has independent shrapnel, different wires are managed separately, and different wire diameters can be safely connected. There is a test hole on the surface of each connector, prompt: double-sided pressure bar terminals, respectively connect the positive, negative and ground of the power supply.