Pros and Cons of LED Headlights

Seven years ago, LED technology was emerging in the world. It was exclusive and expensive. But with each passing day, the number of the LED manufacturer in the world was growing, and LED technology was getting more mature and cheaper. Now LEDs have come to apply to the car headlights.

LED Headlights

The Pros Of Led Headlights


The advantages of LED headlights are obvious. Firstly, it is economical. LEDs consume less energy. That is the best lighting option for all kinds of hybrids and electric vehicles.

From environmental protection, LEDs are also very good. Due to their low energy consumption, they decrease fuel consumption.

A definite advantage of LED headlights is to illuminate the road. Compared to xenon ones, there is not a great difference in brightness. But LED headlights can adapt to the driving conditions. For example, it can illuminate the road with high beams without blinding passing and oncoming cars.

Another undoubted advantage of LEDs is durability. The lifespan of LEDs is on average from 25 thousand to 50 thousand hours, which is hundreds of times longer than halogen bulbs, which rarely last longer than 500 hours. The xenon bulbs with a lifespan of up to 2.5 thousand hours.

LEDs are quite durable in operation, but several factors significantly reduce their lifespan.

LED Headlights

The Cons You Should Know


LEDs work stably in a certain temperature range. When overheated, the LEDs would quickly burn, the lifespan would reduce by several times, and sometimes by tens of times. Therefore, led headlight bulbs are housing with a cooler. The normal working temperature of the LEDs is 60-120 degrees.

In the vehicle housing with h3 led bulb, the current goes through the LEDs is not stable. At a lower current, they continue to work stably, but with a larger current, they work brightly and very briefly. Therefore, elements built into the LED bulbs that stabilize the current surges and prevent it from rising above the recommended rating.

The ideal voltage for the LED headlight is 12 V. This provided that the car is stationary, the engine does not work, and the battery is in half discharged situation. With a well-charged battery, the voltage already reaches 12.5-12.7V. But when the engine starts, the dipped beam is on, and the headlight supplied with a voltage of 14.3-15 V. This is 20% higher than recommended.

Under ideal conditions, the life of the LED bulb is 20,000-25,000 hours. Theoretically, a bulb can use in a car or an electrical system. The life span of the bulb could be approximated to these figures if they obey all the rules for their operation observed.

Bulbs can burn out for many reasons, but the main one is overheating. Led headlight requires a cooling system. Or some errors in their design lead to overheating of boards, and it needs to replace the headlights.

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