Our TTD series 1KV 77-679A 1.5-400mm² Special waterproof and flame-retardant insulation piercing connector is an excellent choice for use in street lamp distribution systems. These connectors are designed to pierce the insulation on tap lines without damaging the conductor, making it easy to connect and disconnect wires quickly and efficiently. Our connectors are made with high-quality materials and are specially designed to withstand harsh weather conditions, making them waterproof and flame-retardant. This product is suitable for wire sizes ranging from 1.5mm² to 400mm², making it a versatile solution for a variety of applications. As a factory, we take pride in offering high-quality products, and our insulation piercing connectors are no exception. Trust us to provide you with a reliable and durable solution for your street lamp distribution system needs.