The brightness of headlights is primarily determined by the light source type, power rating, technical standards, and thermal design. Per Malaysia's MS 828 standard, vehicle lights must obtain SIRIM certification to ensure their brightness, durability and other performance metrics comply with local climatic and road conditions. The brightness standard for low beams is typically no less than 1000 lumens (~1050 candela), while high beams should be no less than 1450 lumens (~1600-2000 candela), with exact values varying slightly based on vehicle model and registration status. For power consumption, 30-40W is standard, though LED technology delivers high brightness at lower wattages. Additionally, light colour must be white or pale yellow (colour temperature ≤6000K), with horizontal beam alignment conforming to 10-meter screen test standards. During modifications, ensure lumen compliance, use matched projector lenses to prevent glare, and select thermally optimized products for sustained performance stability.
