What are the differences between LED bulbs from H1 to H11?
2 Answers
Here are the differences between LED bulbs from H1 to H11: 1. H1: H1 is a single-filament, single-pin bulb, mostly used for high beam. 2. H3: H3 is a special type, generally used in Japanese cars, rarely used in other vehicles. 3. H4: H4 is a dual-filament, three-pin bulb where both low beam and high beam are in one bulb. The standard wattage is 55W for low beam and 60W for high beam, or 90W for low beam and 100W for high beam. Motorcycles usually use H4 bulbs, with 35W for both low and high beams, or 35W for high beam and 25W for low beam. The most common combination is H1 for high beam, H7 for low beam, and H7 for fog lights, or simply a single H4 bulb.
When it comes to the differences between automotive LED bulbs from H1 to H11, I've got some hands-on experience to share. Simply put, these model numbers mainly refer to variations in bulb bases and installation methods. H1 typically features a single-filament design, commonly used in older vehicles for high beams; H3 is often employed in fog lights; H4 is the star dual-filament product that combines low and high beams, ideal for compact cars; H7 is widely used in modern vehicles' low beams with single-filament operation; H8 to H11 generally belong to the domain of fog lights or daytime running lights—for instance, H11 has a smaller base for easier installation. Always check your vehicle's manual when selecting bulbs—wrong replacements may not fit or affect brightness. I've seen cases where misinstalled H1 bulbs caused glare and traffic tickets. Bottom line: matching the correct model ensures safe nighttime driving.
