Car LED Bulbs Amio H4 — AMI-02843 (4‑side COB design, replacement for H4 halogen)

The Amio H4 LED bulbs (4-side COB design) are automotive replacement lamps engineered to fit standard H4 sockets and provide focused illumination for both low and high beam circuits. Designed as a direct replacement for H4 halogen bulbs, these LED units combine a compact form factor with a multi-sided chip-on-board light source to deliver more efficient light output and a stable beam pattern suitable for many passenger vehicles.

Advantages

Compared with traditional halogen H4 bulbs, the 4-side COB layout offers improved light distribution and a more concentrated beam for road illumination. The LED construction reduces power consumption and heat generation while maintaining steady light output. Compact dimensions allow installation in many headlamp housings that accept standard H4 fittings, and the design supports dual-beam operation without changing the vehicle's wiring layout.

Suitable for

• Passenger car headlights with standard H4 sockets requiring a dual-beam solution
• Drivers seeking increased luminous efficiency compared with halogen bulbs
• Applications where compact LED modules are needed to fit restrictive headlamp housings

Key specifications

• Bulb type: H4-compatible LED replacement for dual-beam operation (low and high beam)
• Light source: 4-side COB (chip on board) LEDs
• Socket compatibility: standard H4 fitting for passenger vehicles
• Operating principle: focused beam pattern designed for headlight use
• Power and efficiency: lower power consumption compared with halogen technology
• Form factor: compact design intended to fit common H4 housings

How to use

Install the Amio H4 LED bulbs into the vehicle's headlamp socket following the vehicle manufacturer's procedure for H4 lamp replacement. Ensure the ignition is turned off and the headlight switch is in the off position before beginning. Carefully remove the original halogen bulb, align the LED bulb with the H4 socket, and secure it in place. After installation, verify correct alignment of low and high beam functions and adjust the headlight aim if necessary to comply with road safety requirements.

Usage recommendations

For optimal performance, use these LED bulbs in headlamp housings that allow sufficient heat dissipation and avoid forcing installation where space is extremely limited. If the vehicle originally used halogen reflectors, check local regulations on LED replacements and, if required, combine with appropriate beam adjustment or additional optics to achieve compliant light distribution.