Guangxi Qianhang Digital Technology Co., Ltd.

Professional Auto Parts & LED Lighting Manufacturer

H13 (a.k.a. 9008): The Bulb That Does Both Jobs at Once

Most headlight bulbs are single-purpose — one for low beam, one for high beam, wired and swapped separately. H13 does both from a single base, switching between filaments (or, on the LED version, between chip circuits) depending on which beam you’ve selected. It’s a compact, one-socket solution, which is exactly why you’ll find it all … Read more

Color Temperature and Night Driving: What Kelvin Actually Changes

Ask five people why 3000K headlights are supposedly better in fog than 6000K ones, and you’ll get some version of “the warm light cuts through better.” It’s one of the most repeated claims in automotive lighting — and it’s built on physics that doesn’t actually apply to fog. The interesting part is that the underlying … Read more

How to Install and Adjust LED Headlights: Complete Step-by-Step Guide

Upgrading to LED headlights is one of the most effective ways to improve nighttime visibility and driving safety. However, simply installing a brighter bulb is not enough. Proper installation and beam adjustment are critical. Incorrectly installed LED headlights can create poor beam patterns, reduce road visibility, or produce excessive glare that affects other drivers. This … Read more

What to Do If Your LED Headlights Scatter Light Instead of Focusing? – Causes, Solutions, and Prevention

Scattered, unfocused LED headlights not only reduce your own night‑time visibility but also cause glare for oncoming traffic – a safety hazard and often a legal violation. The following covers the core causes, step‑by‑step solutions, and long‑term prevention. 1. Three Main Causes of Light Scatter 1. Incorrect bulb installation position (most common)The LED’s light‑emitting point … Read more

How to Properly Install and Use Automotive LED Headlights – A Step‑by‑Step Guide from Removal to Aiming

Proper installation not only unlocks the full performance of LED headlights but also prevents common issues like beam scatter and glare. This guide covers the complete process – from removing the old bulb to installing the new one, testing, and aiming the beam. Open the bonnet and locate the dust cover at the rear of … Read more

How to Choose Car Headlights? Key Points for Selection

Among numerous auto parts, headlights play a vital role. They are not only critical for night‑driving safety, but also affect vehicle appearance and overall performance. What factors should you take into account when selecting car headlights? 1. Choose the right headlight source The mainstream headlight sources on the market are halogen, HID xenon and LED … Read more

Difference Between LED Lights With Lens and Without Lens

A headlight lens is essentially a convex lens with light‑focusing capability. When parallel light passes through a convex lens, it converges at one focal point. Conversely, if we place a light source at the focal point, the convex lens will convert the light into parallel beams.For lens‑type LED headlights, the reflector gathers light from LED … Read more

Halogen vs LED Headlights for Family Cars

There is a clear difference in energy consumption between halogen and LED headlights for family cars. Halogen headlights consume relatively more power, while LED headlights feature lower energy consumption.Halogen headlights work by heating a tungsten filament to produce light. Electric energy is converted into both heat and light, and most energy is lost in the … Read more

Lens‑Equipped LED Headlights vs. Standard Lens‑Free LED Lights – Core Differences, Safety Impact, and Selection Guide

Xenon (HID) headlights operate on high‑voltage gas discharge – requiring a ballast to step up the vehicle’s 12V supply to 23,000V, ionising xenon gas inside the quartz tube to create an arc. This introduces a start‑up delay. Quality lens‑equipped xenon units suppress glare during oncoming traffic. Xenon offers excellent colour rendering and is 4‑5 times … Read more