What is the appropriate wattage and lumens for LED car lights?

[AmirRose]

For car LED lights, a 35W model typically produces 3200 lumens, which is 91 lumens per watt. Generally, 80-100 lumens per watt is considered most suitable, but the specific choice should be based on the original vehicle's lighting power and individual brightness requirements. Theoretically, higher wattage in LED car lights means greater power and brighter illumination. However, in practice, higher wattage is not always better. Increased wattage leads to higher power consumption and operating temperatures, which demands more effective heat dissipation. Here are some key points about LED car lights: 1. The operating temperature of the LED chip must be kept below 85°C to ensure a lifespan of over 30,000 hours. If the LED wattage is too high, the increased power will raise the operating temperature. Exceeding 85°C will shorten the lifespan of the LED light as temperatures rise. 2. Since car electrical circuits have a rated power capacity, using LED lights with excessively high wattage that exceeds the circuit's load capacity can cause the wiring to overheat and potentially burn out. In terms of luminous efficiency, LED headlights of the same wattage are brighter than the original halogen bulbs.