Auxiliary Lamp Of Motorcycle

Auxiliary Lamp Of Motorcycle

This H4-format unit is designed as a replacement for conventional halogen bulbs in motorcycle headlight housings. It uses a built-in projector lens and a 3570 LED chip to produce both low and high beam functions. The assembly fits into the existing bucket and connects through the standard three-pin socket. Operating voltage ranges from 12V to 80V, covering most motorcycle electrical systems.
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Description
Technical Parameters

H4 Lens LED Motorcycle Headlight 12V-80V Projector

Beam Function and Use Cases

 

The amber low beam is intended for use in fog, rain, or dusty conditions where shorter wavelengths tend to reflect back toward the rider. The white high beam provides a longer throw for open roads and unlit trails. The switch between the two is handled through the standard vehicle light controls, and no additional switches or relays are required for basic operation.

 

Specifications

 
Product Name H4 Lens led motorcycle headlight bulb
Housing Material Aluminum alloy
LED Type 3570 chipset
Color Temperature White (dual-beam)
Power Draw 55W
Luminous Output High-intensity rating
1

 

 

Optical Design

 

The unit includes its own projector lens system, so it does not rely on the motorcycle's original reflector bowl for beam shaping. The low beam is directed downward with a defined cutoff line to reduce glare for oncoming traffic. The high beam projects a more concentrated pattern further down the road. This approach is intended to address the scattered output that can occur when LED chips are placed into old reflector housings without optical modification.

Installation and Fitment

 

The housing is sized to match standard H4 dimensions. It installs using the factory spring clip, and no external brackets or wiring modifications are required for most motorcycles. The driver circuit is built into the unit, which simplifies the setup compared to systems with separate external control boxes. The aluminum neck and rear heat sink are designed to dissipate heat through passive airflow while the vehicle is in motion.

Electrical Compatibility

 

This lamp is commonly mounted as an auxiliary driving light on crash bars, engine guards, or fork mounts. Its compact single-pod form factor allows for flexible positioning, and the beam pattern can usually be adjusted by rotating the bracket. Some riders use it as a replacement for factory fog lamps, while others add it as supplementary lighting for off-road use.

Durability Considerations

 

The housing uses aluminum construction for the main body and heat sink. The rear cooling face is shaped to increase surface area for heat dissipation. No cooling fans are used. This design choice reduces the number of moving parts that could fail over time.

Typical Applications

 

This led motorcycle headlight is commonly used on cruisers, street bikes, dual-sport motorcycles, and some electric two-wheelers that use H4 sockets. It may also be fitted to older models with sealed-beam housings that have been converted to accept H4 bulbs, depending on the specific bucket depth and reflector shape.

Manufacturing and Wholesale Information

 

Production takes place in a facility with automated assembly lines and quality control procedures. For B2B buyers, this led motorcycle headlight is available with custom packaging and logo printing services. Direct factory sourcing removes intermediary costs, and minimum order quantities for custom specifications are kept flexible. Inventory is maintained for regular dispatch to fulfillment centers supporting online retail channels.

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