Guangxi Qianhang Digital Technology Co., Ltd.

Professional Auto Parts & LED Lighting Manufacturer

How to Measure the Brightness of LED Car Headlights

The brightness of LED car headlights is mainly measured in lumens, which indicates luminous flux. A higher lumen value means stronger light output. Nevertheless, lumen alone cannot tell the whole story. Light pattern, color temperature, power, heat dissipation and original‑vehicle lamp structure should all be taken into account. Blind pursuit of excessive brightness may cause … Read more

Brightness Differences Between HID Xenon Lights and LED Headlights

The brightness gap between HID xenon lamps and LED headlights cannot be simply defined as “one is brighter than the other”. Their lighting performance varies greatly depending on driving scenarios and technical features. Under clear weather conditions, HID xenon lights deliver 3200–3600 lumens of high light output. Their white light helps drivers clearly identify road … Read more

How to Adjust Focus of Automotive LED Headlights | Simple & Efficient Steps

The focusing performance of LED headlights directly affects night driving safety. Proper adjustment of light focusing distance and angle not only improves lighting performance, but also prevents glare that disturbs oncoming vehicles. This article systematically introduces standard focusing adjustment procedures, technical key points and solutions to common issues, helping car owners master easy and efficient … Read more

Halogen vs LED High Beam: How to Choose the Best Option

Choosing between halogen and LED high beams is a common dilemma for car owners during vehicle purchase or lighting upgrade. As vital safety equipment for night driving, high beams greatly affect driving safety and comfort. Halogen lights feature strong fog penetration and low maintenance cost, while LED lights stand out for high brightness, low power … Read more

Do LED Headlights Lose Brightness Over Time

Conclusion: Yes. LED headlights gradually dim due to lumen depreciation, an irreversible aging processIt is an objective rule that LED headlights lose brightness after long service. According to the widely adopted L70 standard in lighting industry, LED reaches the end of its service life once luminous output drops to 70% of the original brightness.Under ideal … Read more

LED vs. Traditional Halogen Headlights – A Complete Comparison of Brightness, Lifespan, Energy Efficiency, and Practical Use

LED headlights and traditional halogen lights differ significantly in brightness, lifespan, and energy efficiency – LEDs are brighter, more energy‑efficient, and longer‑lasting – but halogens offer better fog/rain penetration at a lower cost. This article compares the two across appearance, brightness, energy efficiency, lifespan, and practical use‑case scenarios. 1. Appearance and Design Traditional headlights are … Read more

Do Automotive LED Headlights Dim Over Time? – A Complete Guide to Lumen Depreciation, Causes, and Maintenance

Yes, LED headlights do experience a reduction in brightness over extended use. This is due to “lumen depreciation” – a gradual, irreversible decline in light intensity over time. This article covers the core conclusion, typical depreciation rates, primary causes, and maintenance recommendations. 1. Core Conclusion: Depreciation Is Inevitable – Speed Depends on Quality All LED light … Read more

Common Myths About LED Headlights – Debunking Five Misconceptions

With LEDs becoming widespread in automotive lighting, many owners are eager to upgrade their factory “candle‑like” halogen bulbs. However, many buyers focus only on “is it bright enough?” – with little understanding of headlight structure, what the values K and LM mean, or key lighting parameters – leading to misconceptions. This article debunks five common … Read more

How Many Lumens Are Needed for Fog Driving? – Penetration Comes First – Balance Lumens with Colour Temperature

When driving in fog, the most critical performance of car headlights is light penetration, not raw brightness. Many drivers believe higher‑lumen headlights deliver better vision in fog. On the contrary, high‑lumen light with excessive color temperature scatters heavily through fog droplets and creates the well‑known “white‑wall effect”, reducing actual visibility. For fog‑condition lighting, color temperature … Read more