LED bulb Sourcing H4 18 SMD 5050 white — single unit

Sourcing H4 LED bulb with 18 SMD 5050 white — single unit is an H4-format automotive lamp designed as a direct-fit replacement for compatible headlight sockets. The bulb integrates 18 SMD 5050 LEDs arranged to produce a concentrated white beam suitable for improved roadway illumination. Supplied as a single unit, the bulb is intended for vehicles that accept H4 bulb formats and for applications where a bright, neutral-white output is required.

Advantages

The LED design provides higher luminous efficiency compared with many halogen alternatives while consuming less power. The 5050 SMD diodes deliver consistent color temperature and uniform light distribution across the beam. Compact construction allows installation into standard H4 sockets without extensive modification, and the single-unit supply enables targeted replacement on one side or for auxiliary functions.

Suitable for

• Vehicle headlight replacement where H4 bulbs are specified
• Daytime running lights (DRL) upgrades
• Improving nighttime visibility on compatible cars and motorcycles
• Auxiliary lighting in workshops or portable vehicle lighting needs

Key specifications

• LED type: SMD 5050
• Number of LEDs: 18
• Light color: white (neutral to cool white appearance)
• Mounting format: H4 (three-contact bayonet style)
• Supply: single unit
• Typical application: automotive headlight/DRL replacement

How to use

Ensure the vehicle electrical system is switched off and the engine is cool before beginning installation. Remove the existing H4 bulb according to the vehicle manufacturer’s instructions, taking care to avoid touching the LED surface with bare hands. Insert the Sourcing H4 LED bulb into the compatible H4 socket, secure it in place, and reconnect any dust caps or retainers. After installation, verify beam alignment and operation of both low and high beam functions if applicable, and check for any dashboard warnings or compatibility issues.

Usage recommendations

Use this bulb in vehicles that explicitly support H4 LED conversions or where the socket and electrical system match the H4 format. If the vehicle has a CAN-bus system or warning indications for bulb replacement, consider a compatible resistor or CAN-bus adapter. Avoid prolonged direct handling of the LED elements and confirm local regulations on headlight modifications before use.