High safety: These fixtures are made of insulated modified nylon 6.6 and tinned copper, which have high flammability and conductivity. They are waterproof, corrosion-resistant, and aging resistant. Corrosion resistant, aging resistant, leak resistant, and provide vibration resistant and maintenance free connections. They can be used at an ambient temperature of 85 C. In addition, they are reusable.Reliable connection: Thanks to spring clamping technology, the clamping force of the connector can be automatically adjusted according to the thickness of the wire, making the wire connection vibration resistant and maintenance free.Easy to use: No tools required. Just lift the pole 90 degrees, lay down the wires, and push the pole down. This greatly facilitates your work. Each fixture has a testing opening for easy testing and waiting.Universal connector: suitable for solid and twisted conductors ranging from 0.08 to 2.5 mm2, as well as flexible conductors ranging from 0.08 to 4 mm2. Suitable for the safety of lighting systems, building wiring, communication systems, and alarm systems.Large selection: There are a total of 60 reusable connection terminals: 20 x 2 terminals, 30 x 3 terminals, and 10 x 5 terminals. Everything is in one box. Easy to carry and affordable.