Is H4 compatible with 9003?
On the outside, there is absolutely no difference between H4 and 9003. Both share the same housing, the same dual-filament internals, and the same three-pronged connection. So, of course, they are interchangeable, i.e., installing a 9003 bulb in a vehicle equipped with H4s, and vice-versa.
What vehicle does a 9003 bulb fit?
How to Choose the Right Headlight Bulb for Your Car
| 9003 | 9006 | |
|---|---|---|
| Fitting | Three tabs | L-shaped base |
| Filament | Dual | Single |
| Use | Dual beam | High beam |
| What cars do they fit? | Any car with DOT HB2 assembly | Several Acura, Audi, BMW, Chevrolet, GMC, and Honda models |
Is 9003 the same as H7?
While H1, H3, and H7 bulbs all have just one filament, the 9003 (HB2/H4) is a dual-filament bulb. Instead of only one wire producing light, the 9003 (HB2/H4) bulb has two. This allows the 9003 (HB2/H4) bulb to serve as both the main beam and dipped beam headlights in one single bulb.
Are H7 and 9003 the same?
What bulbs are compatible with H4?
Drivers don’t have much choice when it comes to the bulbs in their headlamps. Since different bulb types have different fittings, they aren’t interchangeable. If your vehicle requires H4 bulbs, you can’t simply switch to another bulb fitting. The only exception is the HB2 or 9003 bulb, which are identical to H4 bulbs.
What is an H4 headlight bulb?
H4 lamps used to be the standard light sources in vehicles. These are the so-called bilux lamps. This simply means that there are two filaments in the bulb: one for the low beam and one for the high beam.
What are H4 bulbs used for?
How does an H4 lamp work? H4 lamps used to be the standard light sources in vehicles. These are the so-called bilux lamps. This simply means that there are two filaments in the bulb: one for the low beam and one for the high beam.
What is the difference between H4 and 9003?
One of the main differences you will notice is in the base of the bulbs. Both bulb types have three prongs on their base. However, when you pay attention to the tabs, you will notice that the 9003 has equal-sized tabs. On the other hand, the H4 has one of the bottom tabs shorter.
What is the best H4 bulb?
Sylvania 9003. From the trusted and time-honored brand,Sylvania,the 9003 is an affordable and high-quality H4 bulb.
How to replace H4 bulb?
Socket wrench
Which other car uses H4 bulbs?
6 Brightest And Best H4 Bulb 2019 Review. This bulb uses a halogen filament making it a good option to improve visibility in older cars.