1. The lumen of 35 wLED lamp for cars is 3200,91 lumens per watt. Generally, 80 ~ 100 lumens per watt is the most appropriate, but it depends on the light power of the original car and the individual's brightness requirements. In theory, the higher the wattage of the led lamp, the higher the power, the brighter the brightness. But in fact, the led lamp wattage is not the higher the better. If the wattage is higher, the power is greater, and the working temperature is higher, a better cooling effect is needed.

2. The working temperature of led must be controlled below 85 to ensure its service life of more than 30,000 hours. With large led wattage, power is high and working temperature is high. Once above 85C, the life of the led lamp shortens with increasing temperature. In addition, due to the rated power of the car line, if the wattage of the led lamp is higher, exceeding the load of the car wire, the line will heat up and even burn out. In terms of luminous efficiency, the led headlights of the same wattage are brighter than the halogen lamps of the original car.

3. According to the power consumption, the led can be divided into different power ranges. Generally, there are 10,20,30,50,100 watt car single led lights. Generally, 1W household led lamp is equivalent to about 8W incandescent lamp, while the power of car LED lamp is 2-3 times that of ordinary halogen lamp. Therefore, when changing the lamp, there is no need to change the light bulb with higher power, but only need to change the led lamp with the same or lower power as the original car.