Product Specifications

ITEM	VOLTAGE	WATTAGE	BASE	CERT
HB3/9005	12V	60W	P20d	E4
	12V	100W	P20d

I. Overview & Standardization
The 9005 (P20d) is a standardized North American (SAE/DOT) halogen bulb designed specifically for high-beam headlight applications. It is part of the widely adopted 9000-series bulb system and has been a factory standard in countless vehicles—especially Japanese and North American models—from the 1990s through the 2010s. Its design prioritizes long-range illumination and maximum foreground brightness.

II. Key Characteristics & Application

1. High-Beam Function: A single-filament bulb engineered exclusively for high-beam use. It typically operates at 65W, producing a powerful, focused beam pattern optimized for distance and peripheral spread when combined with a properly designed reflector or projector.

2. Performance-Oriented Optics: The filament is precisely positioned to maximize output and beam control in high-beam-specific lamp housings. Many modern 9005 bulbs also feature a selective yellow (amber) coating on certain segments of the glass to fine-tune color temperature and reduce back-scatter in fog or poor weather when used in some applications.

3. System Pairing: It is commonly paired with the 9006 (low-beam) bulb in vehicles with separate high/low beam lamp units (a system often called “dual-beam separate” or “9005/9006 system”).

III. Identification & Compatibility

• Base: P20d. This is a plastic plug-in base with two opposing wire guides. It is keyed to prevent incorrect insertion and is physically distinct from other common bases like the P22d (9006) or PGJ19-2 (H11).

• Critical Non-Interchangeability:
  — It is NOT interchangeable with 9006 (low beam, P22d base).
  — It is NOT interchangeable with H10, H11, or H16 (different base systems).
  — It is NOT interchangeable with 9011 (another high-beam bulb with a different base and higher output).

• Primary Application: Found in the high-beam socket of most Japanese-brand vehicles (Toyota, Honda, Nissan, Subaru, etc.) and many American vehicles (GM, Ford, Chrysler) from the 1990s onward.

IV. Important Installation & Handling Notes

• Correct Pairing: Always verify the vehicle’s low-beam bulb is the matching 9006 (or in rare cases, H11). The headlamp’s optics are calibrated for this specific pair.

• Orientation: Align the base’s keyway with the socket. Do not force it.

• No-Touch Rule: Handle using the plastic base or clean gloves. Skin oils will drastically shorten bulb life.

• Legal Compliance: When replacing, ensure the bulb is certified for road use (SAE/DOT compliant) if intended for street-driven vehicles.