BlueBird BLBH4656 Rectangular Sealed Beam Headlight Bulb

The BlueBird BLBH4656 is a rectangular sealed beam headlight bulb designed for commercial vehicle and bus applications. This H4656-type halogen bulb provides reliable low beam illumination with a sealed beam construction that integrates the filament, reflector, and lens into a single unit.

Key Features:

• H4656 sealed beam configuration with rectangular 4x6-inch design
• Halogen technology for improved brightness and visibility
• Three-lug base design for secure mounting and electrical connection
• Low beam application for safe nighttime driving
• DOT compliant and meets SAE standards for automotive lighting
• Direct replacement for factory original equipment

This sealed beam headlight is engineered for durability and long service life in demanding commercial applications. The halogen filament is designed to resist shock and vibration common in heavy-duty vehicle operation. For optimal performance and balanced illumination, headlight bulbs should be replaced in pairs.