Product description :

Upgrade or replace your compatible motorcycle or automotive headlight bulb with the Roots H4 P43t 100/90W 12V Quartz [HQ443YA]. Designed around the H4 P43t base, this 12V quartz headlight bulb features a 100/90W power specification and is suitable for compatible headlight applications requiring the same bulb configuration.

H4 P43t 100/90W Quartz Headlight Bulb

The Roots HQ443YA is designed for compatible headlight systems using an H4 P43t bulb configuration. Its 12V electrical specification and 100/90W rating make it a practical replacement option for applications that specifically support these requirements.

The quartz construction is suited to automotive and motorcycle headlight applications where compatible H4 bulbs are required.

Practical Headlight Replacement

Whether you are replacing a failed bulb or maintaining your motorcycle or vehicle's lighting system, the Roots H4 bulb offers a practical replacement solution for compatible applications. Always confirm the original bulb type, socket/base, voltage, wattage, connector, and headlight housing specifications before installation.

Because the 100/90W rating can require more electrical capacity than lower-wattage H4 applications, compatibility with the vehicle's wiring, fuse, switchgear, and charging system should be confirmed before use.

Key Features

• Roots H4 P43t 100/90W 12V Quartz
• Product code: [HQ443YA]
• H4 bulb configuration
• P43t base
• 12V electrical specification
• 100/90W power rating
• Quartz bulb construction
• Designed for compatible motorcycle and automotive headlight applications
• Practical replacement headlight bulb
• Suitable for compatible H4 headlight systems
• Useful for routine lighting maintenance and replacement
• Verify H4 P43t compatibility before purchase
• Confirm vehicle voltage and 100/90W wattage compatibility
• Check connector and headlight housing specifications
• Verify wiring, fuse, switchgear, and charging-system capacity
• Install without touching the bulb glass with bare fingers
• Ensure the bulb is correctly seated in the headlight housing
• Check beam alignment after installation
• Replace the bulb if damaged or defective
• Professional installation recommended where electrical modifications are required

Why Buy from Bike Experts?

At Bike Experts, we offer quality motorcycle and automotive lighting components selected for functionality, compatibility, durability, performance, and reliable everyday use. From Roots bulbs and horns to auxiliary lights, electrical components, exhausts, riding gear, helmets, luggage, and motorcycle accessories, we help riders maintain and upgrade their vehicles.

We are also authorised dealers of Moto Torque and HT Exhaust, providing riders with access to trusted motorcycle accessories and upgrade solutions.

Choose the Roots Horn H4 P43t 100/90W 12V Quartz [HQ443YA] for a practical H4 P43t replacement bulb designed for compatible 12V headlight applications requiring a 100/90W configuration.