Anti-Flicker Capacitor Link

The Morimoto Capacitor Link H300 is designed to eliminate flickering, flashing, and buzzing commonly experienced when installing aftermarket HID lighting on vehicles equipped with pulsed headlight circuits. Many modern vehicles use pulsed voltage for Daytime Running Lights (DRLs) or factory lighting control systems, which can interfere with HID relay harnesses and cause unstable ballast operation.

The H300 smooths out these irregular voltage signals, providing a steady power supply that allows your HID system to operate reliably and consistently.

Eliminates HID Flickering

Many factory headlight circuits no longer provide a constant 12-volt output. Instead, they use rapidly pulsed voltage signals that can cause aftermarket HID systems to experience:

• Headlight flickering
• Flashing during operation
• Relay buzzing or chattering
• Unstable ballast performance
• Inconsistent HID startup

The Morimoto H300 filters these pulsed signals before they reach the relay harness, ensuring your HID lighting receives smooth, uninterrupted power.

Advanced Anti-Flicker Technology

The Capacitor Link works by storing electrical energy and releasing it evenly to your HID relay harness. This effectively converts irregular pulsed voltage into a stable, continuous power source for your HID ballasts.

Its high-capacity 10,000µF electrolytic capacitor helps maintain constant voltage during fluctuations, preventing interruptions that can affect lighting performance.

Simple Plug-and-Play Installation

Installation is fast and requires no cutting or splicing.

The H300 installs directly between the factory headlight connector and your HID relay harness, with only a single ground connection required.

Installation steps:

• Connect the factory headlight plug
• Connect the Capacitor Link to your relay harness
• Attach the ground wire
• Complete your HID installation

Once installed, the capacitor automatically filters pulsed voltage signals for reliable HID operation.

Universal Compatibility

The Morimoto H300 is designed to work with most single-beam HID systems and low beam relay harnesses using industry-standard 9006-style connectors.

Ideal for vehicles equipped with:

• Pulsed headlight circuits
• PWM (Pulse Width Modulation) lighting systems
• Daytime Running Lights (DRLs)
• HID relay harness installations

Premium OEM-Quality Construction

Built using high-quality automotive components, the Morimoto H300 is engineered for long-lasting reliability.

Construction features include:

• High-capacity 10,000µF electrolytic capacitor
• Heavy-duty 14 AWG wiring
• OEM-quality 9006 male and female connectors
• Weather-resistant construction
• Durable automotive-grade materials

Designed to withstand heat, vibration, and daily driving conditions while maintaining dependable performance.

Features

• Eliminates HID flickering and flashing
• Stops relay buzzing caused by pulsed headlight circuits
• Smooths unstable factory voltage signals
• High-capacity 10,000µF electrolytic capacitor
• Heavy-duty 14 AWG wiring
• Plug-and-play installation
• No cutting or splicing required
• OEM-style 9006 connectors
• Compatible with most single-beam HID relay harnesses
• Premium automotive-grade construction

Package Includes

• (1) Morimoto Capacitor Link H300
• Plug-and-play HID anti-flicker capacitor module

The Morimoto Capacitor Link H300 is the ideal solution for vehicles with pulsed headlight circuits that cause HID flickering or relay chatter. Easy to install and built with premium components, it delivers stable voltage to your HID relay harness for reliable performance and consistent light output.