The SM 9122 is a heavy-duty halogen upgrade designed for 24V commercial vehicle systems. Featuring the standard H4 (P-43T) three-prong base, this bulb is a powerful alternative to standard 75/70W commercial bulbs. Delivering 100W for high beam and 90W for low beam, it is engineered to provide the extra brightness and beam distance required for trucks and buses operating on long-haul night routes.
