Features: H4 automotive headlamp intensifier mainly increases the brightness of lights, prolongs the service life of lamps, improves the safety of driving at night, and protects lines and related electrical appliances. This is a halogen H4 headlight relay harness with high heat ceramic plugs for cars. With 2 Headlights(High and Low Beams Plug and for Play Harness)It can make your headlight increment of 30% -50%. Resistance to high temperature and high pressure line for protection. To protect the original car lines.Easy installation, needn'for t change the original car circuit can be applied directly. Specifications: Material:Ceramics Voltage:12V,24V(optional) Rated Current:80A Size:Approx.15x3cm/5.91x1.18in Net Weight:320g Note: Please allow 1mm errors due to manual measurement. Due to the difference between different monitors, the picture may not reflect the actual color of the item. Package includes: 1Set H4 Headlight Relay