1. Factory LED headlight power range
Factory‑fitted LED headlights typically range from 20W to 40W, depending on the model and trim level. Most are in the 22W‑35W bracket – for example, the Honda Accord’s LEDs run at about 32W. By comparison, factory halogens are usually 55W or 60W – but LEDs are far more efficient, delivering the same brightness at much lower power.
2. Retrofit LED bulb power options
Retrofit LED bulbs come in a wider range – from 10W to 100W. For daily use, 30W‑40W is the sweet spot – good brightness without excessive heat.
3. Power comparison across headlight types
| Type | Power Range | Key Characteristics |
|---|---|---|
| Halogen | 55‑65W | Warm yellow light, strong fog penetration, affordable – but limited brightness |
| Xenon (HID) | 35‑45W | High brightness at low power – but severe scatter, requires lenses |
| LED | 22‑26W (common) / 70‑90W (some models) | High colour temp, instant‑on, focused beam, ultra‑long life, compact |
4. Detailed breakdown of each type
Halogen: warm yellow light with good colour rendering – excellent in fog and light rain. Affordable, but brightness is limited.
Xenon (HID): low power but high brightness – significantly improves night visibility and offers good efficiency. However, scatter is a major issue – without proper lenses, it can dazzle other drivers.
LED: higher colour temperature, light closer to natural daylight – clear and comfortable. Instant start‑up with no delay. Focused beam for precise coverage. Ultra‑long lifespan and compact size offer greater design flexibility.
5. Buying tips – avoid these pitfalls
Don’t just look at wattage – check the lumen value (brightness unit). For low beams, around 35W with 3400‑5400 lumens is a good range; high beams can be slightly higher. Also ensure you don’t exceed the vehicle’s wiring capacity – overloading can cause overheating or even fire risk.