Compact H4 LED Headlight Bulb with High and Low Beam for 9–32V DC Vehicles and a Space-Saving Fanless Design

This compact H4 LED headlight bulb provides high and low beam in a single replacement for an H4 halogen bulb. Its base is just 8 mm longer than a standard H4 halogen base, making it a practical choice for motorcycles, kit cars and other vehicles with limited space behind the headlight.

The bulb connects directly to an existing H4 wiring block without a separate control unit. Its fanless aluminium body and copper core dissipate heat without moving parts, while the 9–32V DC operating range supports 12V and 24V electrical systems with either positive or negative earth. Check the socket, available clearance and electrical supply before fitting.

Features

• Combined high and low beam for H4 headlight applications.
• Compact base helps accommodate installations with limited rear clearance.
• Direct H4 connection without a separate control unit.
• Fanless cooling through an aluminium body and copper core.
• Pure white light with a specified color temperature of 6000–6500K.
• Non-polarity-sensitive operation supports positive and negative earth systems.
• 16 CSP chips per bulb.

Specifications

• Quantity: 1 bulb
• Bulb fitting: H4 P43T
• Part number: 12VH4C
• Beam functions: High beam and low beam
• Operating voltage: 9–32V DC
• Vehicle system voltage: 12V or 24V
• Color temperature: 6000–6500K pure white
• Main beam output: 1500 lumens
• Dipped beam output: 1100 lumens
• Specified current draw: 1.8 A
• Base length difference: 8 mm longer than a standard H4 halogen bulb base
• Body material: Aviation-grade aluminium
• Heat dissipation: Aluminium body with copper core; no cooling fan
• LED chips: 16 CSP chips per bulb
• Polarity: Positive or negative earth
• Source-stated ingress rating: IP68

Frequently Asked Questions

Is this a single H4 bulb or a pair?

This H4 LED headlight bulb is supplied as one bulb. Order the quantity required for your vehicle's headlight arrangement.

What should I check before fitting this H4 LED bulb?

Check that your headlight uses an H4 P43T fitting, has room for a base 8 mm longer than a standard H4 halogen base and operates on 9–32V DC. The bulb plugs into the existing H4 wiring block.

Does this bulb provide both high and low beam?

Yes. This H4 LED bulb provides both high and low beam, with specified outputs of 1500 lumens for main beam and 1100 lumens for dipped beam.

Can I use it with a positive earth electrical system?

Yes. This H4 LED bulb is not polarity sensitive and supports both positive and negative earth systems within its 9–32V DC operating range.

Does the bulb need a cooling fan or a separate control unit?

No. This compact H4 LED bulb uses an aluminium body with a copper core for heat dissipation and connects directly without a separate control unit.