Hella H4 100/80WSB Long Life High Wattage Halogen Bulb 12V 100/80W P43t T4.625

The Hella H4 100/80WSB is a high-wattage halogen replacement bulb from Hella's Long Life Series, engineered for demanding off-road and auxiliary lighting applications. Operating at 12 volts with a 100W high beam / 80W low beam output, this bulb delivers significantly more light output than a standard H4, making it ideal for off-road driving lights, auxiliary headlamps, and work light fixtures.

Hella's Long Life Series achieves extended service life through the use of heavy inert gases — including argon and krypton — which reduce filament degradation over time. The result is a bulb that combines enhanced brightness with improved durability and vibration resistance compared to standard halogen bulbs.

Key Features:

• Bulb Type: H4 High-Wattage Halogen
• Voltage: 12V
• Wattage: 100W High Beam / 80W Low Beam
• Base Type: P43t
• Bulb Shape: T4.625
• Bulb Color: White (Standard)
• Series: Long Life — uses heavy inert gases for extended filament life
• Street Legal: No — intended for off-road use only
• Quantity: Sold individually

Important Note: Due to the high current draw of this bulb, use of a dedicated relay harness is strongly recommended to protect factory wiring. This bulb is intended for off-road use only and is not DOT-compliant for on-road headlight use.

Hella has been a global leader in automotive lighting for over 100 years, supplying both OEM manufacturers and the professional aftermarket with precision-engineered lighting components built to perform in real-world conditions.