The brightness increase of + 100% in lumens indicated compared to a halogen is a parameter calculated with REAL data with an ULBRICHT sphere.

Switching from classic halogen H3s to LEDs is a very common upgrade, especially for owners of classic cars or vans that use these bulbs in their fog lights or headlights.

However, H3s have a particularity: they are very small and have an integrated cable, which makes choosing the correct LED bulb essential for successful installation.

Why make the switch? (The advantages)

• The improvement is not only aesthetic, but concerns the overall efficiency of the lighting system:
• Superior Visibility: While a standard halogen H3 puts out around 800-1000 lumens, a good LED kit can double this output, casting a brighter light on the road.
• Light Color: LEDs offer a pure white (about 6000K), similar to daylight. This is less tiring on the eyes than the "tired" yellow of halogens (3200K) and makes road signs much more reflective.
• Energy Efficiency: LEDs consume approximately 60-70% less energy. This reduces the load on the alternator and prevents overheating of the original wiring, which is often thin in older cars.
• Lifespan: A halogen lamp lasts an average of 500 hours; a quality LED can exceed 30,000 hours, requiring almost no maintenance.

What can be concretely improved?

• Responsiveness: The LED reaches maximum brightness instantly. If you use the H3 as your high beam, you'll notice an immediate and much more powerful "flash."
• Headlight Temperature: H3 halogens get extremely hot, eventually baking the reflectors over time. LEDs generate heat at the base (heat sink) but do not emit IR rays towards the lens, preserving the headlight's transparency.
• Safety: Whiter, sharper light allows you to better perceive the edges of the road and obstacles when driving at night or in fog.