Light Bulbs & Sockets

The 9005 Bulb (designated as HB3 under ECE Regulation 37 with a P20d right-angle base) is the high-output single-filament halogen standard designed specifically for dedicated automotive high-beam headlights. Operating at 65W nominal at 12V, generating a powerful 1,700 lumens with an unpainted clear quartz bulb tip for maximum forward optical throw.

D2S and D2R Bulbs (standardized under UN ECE Regulation 99 with a P32d base) are High-Intensity Discharge (HID) automotive lamps that produce light by igniting an electric plasma arc inside a quartz glass chamber filled with Xenon gas and metal-halide salts. Operating at 35W nominal and generating an intense 3,200 lumens (~2.1× the brightness of halogen).

The H11 Bulb (standardized under UN ECE Regulation 37 with a PGJ19-2 right-angle plastic base) is the modern standard for front fog lights and projector low-beam headlights. Featuring a built-in silicone weather-sealing O-ring, an integrated 90-degree automotive locking connector, and an axial 55W filament generating 1,350 lumens.

The H4 Bulb (marketed as 9003 or HB2 in North America under DOT regulations, standardized with a P43t 3-prong base) is the legendary dual-filament automotive headlight bulb. Containing both a 55W low-beam filament (equipped with an internal stamped metal anti-glare shield cup) and a 60W high-beam filament inside a single halogen quartz glass capsule.

The H7 Bulb (standardized under UN ECE Regulation 37 with a PX26d flanged base) is the most widely used single-filament halogen automotive headlight bulb in the world. Operating at 55W nominal at 12V (rated at 13.2V test voltage), it generates 1,500 lumens (±10%) primarily for low-beam projector and reflector headlight assemblies.

The W5W Bulb (commonly called a T10 Wedge or 194 / 168 in North America, standardized under ECE Regulation 37 with a W2.1×9.5d base) is the universal automotive miniature capless glass bulb. Operating at 5W at 12V (generating ~50 lumens), it is the standard for front parking lights, side turn indicators, license plate lamps, and cabin interior courtesy lights.