In principle, the higher the lumen, the brighter the light. However, the increase in the amount of light emitted by LED headlights is achieved by increasing the current. The greater the current, the greater the amount of light emitted.
When the LED chip emits light, it will dissipate heat at the same time. The increase in current is proportional to the increase in heat. The heat dissipation area and heat dissipation method of the lamp body determine the maximum heat dissipation. If the current is too large, the heat generated exceeds the radiator. The maximum heat dissipation, the lamp beads will be easily burned out.
The LED chip is also very sensitive to heat. The working junction temperature of the chip cannot exceed 125 degrees. If the heat dissipation is not good and the chip temperature is too high, the light will soon decay, causing the LED chip to burn out.
The higher the lumen, the greater the corresponding current, that is, the greater the power. The original car halogen lamp is designed to be 55/60 watts. Excessive power will cause the circuit to heat up, accelerate the aging of the circuit, and easily cause accidents.
Therefore, the lumens of LED headlights are not the higher, the better, but the maximum power is within 55W, does not damage the circuit, and the heat generation is within a controllable range, which is the best.
