Product Specifications

ITEM	VOLTAGE	WATTAGE	BASE	CERT
H19	12V	60/55W	PU43t-3

I. Purpose & Design Philosophy
       The H19 (PU43t-3) is engineered for maximum auxiliary forward lighting in demanding conditions. It serves as a high-wattage light source in dedicated long-range driving lamps (often in off-road light bars or bumper pods) or as an ultra-high-output fog lamp in specialized applications. Its core design principle is to deliver absolute luminous supremacy within the halogen domain for supplemental lighting systems.

II. Primary Advantages

1. Maximum Halogen Output: With a standard rating of 65W or 70W, and in some variants up to 100W, the H19 produces one of the highest raw light outputs among standardized halogen bulbs. It is designed to flood a target area with intense light.

2. Optimized for Auxiliary Lamps: Its filament geometry and base are specifically tailored for aftermarket or OEM auxiliary lamp reflectors and projectors, ensuring proper focus and beam pattern when used in its intended housing.

3. Robust Construction for Harsh Use: Built to withstand the vibration, weather exposure, and thermal stress typical of externally mounted auxiliary lighting.

III. Key Features & Identification

• High-Capacity Base: PU43t-3: This is a large, three-tab ("t") bayonet base. The "PU" prefix and "-3" suffix denote a specific, high-current variant. Its size and pin configuration are unique and not compatible with standard headlight or common fog light sockets (e.g., H4/P43t, H13/P26.4t).

• Reinforced Filament & Envelope: Features a heavy-duty filament support system and a thick, high-temperature quartz glass envelope to manage the significant heat generated.

• Specific Electrical Contacts: Designed to handle the high current draw, with heavy-duty terminals in the base.

Critical Application Notes & Warnings

• Intended Use: Exclusively for aftermarket/OEM auxiliary driving lights or specific high-performance fog light assemblies. It is NOT a replacement for standard headlight (low/high beam) bulbs.

• Compatibility is Paramount: The PU43t-3 base fits only corresponding lamp housings designed for it. Forcing it into other sockets is impossible and dangerous.

• System Requirements: Due to its high wattage, it must be used with a properly rated wiring harness, relay, and switch. Direct connection to factory circuits will likely cause overload, melted wires, or fire.

• Legal & Safety Compliance: When used in driving lamps, it is the user's responsibility to ensure compliance with local vehicle lighting regulations regarding aiming, use on public roads, and glare prevention.

Selection & Installation Guide

• Confirm the Housing: Purchase only if your auxiliary light housing or OEM specification explicitly calls for an "H19" or "PU43t-3 base" bulb.

• Inspect the Old Bulb: Match the large three-tab base and overall bulb shape precisely.

• Professional Installation Strongly Recommended: Installing high-wattage auxiliary lighting requires electrical expertise to ensure safe and legal operation.