LEDH4 LED Headlight Bulbs
H4 is a dual-filament bulb that gives both high and low beam from one bulb. It is one of the most common headlight bulbs worldwide, especially on Asian-built cars, pickups, older vehicles and motorcycles.
H4 at a glance
| Code | H4 |
|---|---|
| Also called | 9003 / HB2 |
| Base | P43t |
| Beam use | Dual beam: high and low in one bulb |
| Typical halogen wattage | 60/55 W |
Fitting notes
Because one H4 LED bulb carries both beams, the chip layout must recreate two separate light sources. Choose an H4 LED with a clear low-beam cut-off and check the beam on a wall before final aim.
ShinVea models in H4
| Model | Power | Chip | Tier |
|---|---|---|---|
| BT150 | Start 150 W / stable 120 W | Sanan 4575 | High output |
| BT100 | Start 100 W / stable 80 W | Sanan 3570 | High output |
| BT80 | Start 80 W / stable 60 W | Sanan 3570 | Mainstream |
| DT150 | Start 150 W / stable 120 W | Sanan 4575 | High output |
| DT80 | Start 80 W / stable 60 W | Sanan 3570 | Mainstream |
| XT80 (APP) | 160 W per pair | CSP3570 | Smart |
| M9 | Start 65 W / stable 45 W | CSP3570-55mil | Value |
| M8 Pro | Start 65 W / stable 45 W | CSP3570-55mil | Value |
| MINI | Start 55 W / stable 35 W | CSP3570-55mil | Compact |
| Q58 | H4: 30 W ±10% · H7: 30 W ±10% · H11: 40 W ±10% | Customised auto-grade chips | Compact |
BT150
Top-power BT bulb: 150 W start, 120 W stable per bulb, Sanan 4575 chips.
BT100
100 W start, 80 W stable per bulb, Sanan 3570 chips.
BT80
80 W start, 60 W stable per bulb, twin copper-tube cooling.
DT150
150 W start, 120 W stable per bulb, Sanan 4575 chips.
H4 FAQ
Which ShinVea LED bulbs fit H4?
H4 versions are available in: BT150, BT100, BT80, DT150, DT80, XT80 (APP), M9, M8 Pro, MINI, Q58.
What is the halogen equivalent of H4?
A standard H4 halogen bulb is typically 60/55 W. LED replacements draw less steady-state power for their output, so some vehicles need a CANbus decoder.
Is H4 the same as 9003 / HB2?
H4 is also known as 9003 / HB2. Its base is P43t. Always match the code on the original bulb, because similar-looking bases have different keying.
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