The expected service life of LED is 50,000 hours, while halogen lamps are 20,000 hours and tungsten incandescent lamps are 3,000 hours. Compared with incandescent lamps, LED is structurally robust, not easily affected by vibration, and the light output brightness during use will not decline significantly. Based on a lighting scheme with multiple LEDs, it also has the advantage of "redundancy". Even if one LED fails, the lighting device can still be used.
Correct use of LED (especially controlling the temperature of LED) can effectively extend the expected life of LED car lights. On the contrary, if the temperature is too high, the LED is easily damaged. The application of LED in automotive lighting also involves many legal definitions. Most countries have a clear definition of brake or headlight failures-lights on or off. But for lamps using multiple LEDs, it is difficult to accurately define whether the lighting lamp is damaged. Manufacturers and legislative bodies are defining the use of LEDs.
Compared with standard incandescent lamps, LED automotive lamps consume more light output per unit of electricity. But compared with halogen lamps, the actual advantages of LED light output are not obvious. The latest LEDs have excellent lumens per watt values, but some values are obtained under optimized conditions, and are usually not obtained under the conditions of highest output. Generally speaking, when the current of LED increases, the light output does not increase linearly. Therefore, even if the LED outputs x lumens at a current of 0.5A, it will not output 2x lumens at a current of 1.0A.
For example, taking brake lights and turn indicator tubes, assuming the vehicle speed is 125 kilometers per hour, which is 35 meters per second, the hot start time of incandescent lamps is about 250 milliseconds, while the fast-responding LED car light can issue a brake warning about 8 meters earlier to effectively prevent car collisions, and the same is true for indicator lights.
Another key characteristic is the way in which LEDs emit light. Unlike incandescent lamps, LED car lights only emit light through one surface, which is beneficial for headlight and navigation light applications, but may not be suitable for other lighting applications such as interior lighting.
The advantages of LED lights are bright, reliable, and use less energy. More and more indoor and outdoor lighting rely on LED lighting, not to mention other things such as offices, swimming pools, traffic lights, and so on. To learn more about the LED lights you need, please visit our Hanway website.
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