H4 Halogen Bulb
H4 Halogen Bulb
Key Features
-
Dual Filaments:
One filament for low beam and another for high beam, all in a single bulb. -
Halogen Technology:
It contains a tungsten filament enclosed in a glass capsule filled with halogen gas (usually iodine or bromine).
The halogen cycle helps the filament run hotter and brighter than standard incandescent bulbs. -
Base / Fitment:
H4 bulbs use a P43t base, common in many cars, trucks, and especially motorcycles.
Typical H4 halogen specs:
-
Low beam: ~ 55 watts
-
High beam: ~ 60 watts
-
Colour temperature: around 3200K (warm white)