Allinone screw terminal block connector kit 50 piece set in total: 20 pieces each of 2pin and 3pin types, plus 10 pieces of the 4pin type, to cover a range of connection needs. Secure and quick connections: screw terminal design provides reliable, secure contacts while allowing quick disconnection for maintenance or upgrades. Wire size compatibility: designed to fit wires from 18 AWG to 26 AWG for versatile wiring configurations. Electrical performance: rated for up to 150 V and up to 6 A, suitable for a variety of applications. Practical and versatile: ideal for prototyping, testing, LED projects, small automation work, and general electronics wiring tasks. Clear configuration options: multiple pin configurations in a single kit support different circuit layouts without the need for multiple separate parts. Use scenarios Prototyping and testing: quickly assemble and reconfigure circuits on a small project or development setup. LED projects and small automation: organize and secure signal and power lines with clean, reliable terminations. Maintenance and upgrades: easily disconnect and reconnect wires during servicing or component upgrades in hobby electronics or small appliances. Specifications at a glance Pin types included: 2pin, 3pin, and 4pin screw terminal blocks Total quantity: 50 pieces (20 x 2pin, 20 x 3pin, 10 x 4pin) Wire size range: 18 AWG to 26 AWG Voltage rating: up to 150 V Current rating: up to 6 A Connection method: screw terminal for secure, detachable connections