Wires are typically available in 8 colors, including red, yellow, blue, green, black, white, brown, and dual-color (yellow-green). In circuits, red, yellow, and usually serve as the live wire (L), blue as the neutral wire (N), dual-color wires as the earth wire (PE), and black, white, and brown as backup wires.
The differences between the line and the R-line are:
Price-wise, R is a bit more expensive due to its focus on craftsmanship, whereas R's range is specified from 2.5 mm to 70 mm for electrical work, but in line with our actual needs, it's the same as R.

The differences between the line and the R-line are:
BVR wires are categorized by material into flame-retardant (ZR-BVR), fire-resistant (NH-BVR), and low-smoke, halogen-free (WDZ-RYJ) wires. Users can flexibly choose according to the application. Low-smoke, halogen-free (low) wires produce minimal smoke when burning and release gases without halogen (low halogen) elements, making them (low-toxic). In the event of a fire, they significantly reduce harm to instruments and equipment, and are thus widely used in high-rise buildings, large libraries, stadiums, disaster command and control centers, stations, civil airports, passenger waiting rooms, protected areas, underground malls, and crowded public spaces.

Yellow-green grounding wire is suitable for fixed installation in power units with alternating rated voltages of 450/750V or below, such as residential lighting. Fixed wiring can be used in indoor open wiring and conduit installations.

For easy differentiation during installation, they are available in seven colors: red, yellow, blue, green, black, white, and dual. Due to the soft structure of BVR, its application is mostly in soft environments.
This wire is suitable for fixed installation and is widely used in indoor wiring, lighting circuits, and power outlet circuits.
Advantages: Excellent insulation properties, good heat resistance, suitable for use in dry or humid indoor environments.
Simple structure, reasonable pricing.