Features: Equipped with color-changing quartzs tube, the real 40w, the brightness really reaches 5500 lumens, and currently the brightest LED headlamp on the market. Anti-dispersion design, better output light type and more concentrated light. The service life is more than 50000 hours, the quality is more stable, and the performance is more durable. The integrated pure aluminum heat conduction design has excellent heat dissipation performance and achieves the best heat dissipation effect. Easy to install, plug and play. 9v-36v wide-voltage design, universal for large car and small car. Specifications: Material:Aluminum Power: 55W Voltage:9-36V Lumen (brightness): 5000lm Light Sources Model:H4 LED 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: 2x H4 LED Bulbs