2x H21 LED Bulbs Canbus BAY9S 433D – Error Free Set – Car Light Upgrade – New & Boxed

Upgrade your vehicle's lighting system with these high-performance H21 Canbus LED Bulbs featuring the BAY9S 433D base. Designed for use in side markers, interior lights, or license plate lighting, these LEDs deliver a crisp, bright output while maintaining full compatibility with modern Canbus systems.

These bulbs are error-free and won’t trigger dashboard warnings, making them the perfect plug-and-play replacement for standard halogen bulbs. Ideal for those looking to modernise their car’s lighting with long-lasting, low-power LED technology.

Key Features:

• Bulb Type: H21 LED
• Base: BAY9S (433D)
• Voltage: 12V DC
• Canbus Compatible: Yes – Error Free
• Light Colour: Bright White (6000K)
• Power Efficient with Low Heat Output
• Application: Side Light / Number Plate / Interior / Marker
• Quantity: 2 Bulbs (1 Pair)
• Condition: Brand New & Boxed

Benefits:

• Modern LED upgrade for improved light output
• Eliminates dashboard error messages
• Long lifespan & vibration-resistant build
• Quick and easy plug-and-play installation
• Ideal for cars with sensitive Canbus systems

Compatibility:

Compatible with vehicles requiring BAY9S / 433D base H21 bulbs. Please check your existing bulb type before purchasing.

Note: This listing includes 2x LED bulbs. Suitable for both left and right sides or for multi-use locations in your vehicle.

All items are dispatched the same day, provided they are in stock at the time of purchase. Our standard delivery option now takes 1 to 2 working days. If you need your items even sooner, you can choose our fastest delivery service.

We offer two delivery options:

• Free Standard Delivery: This option delivers your order within 1 to 2 working days.
• Express Tracked Service: With this choice, you'll receive your order the next day.

If you wish to return an item, please make sure to cancel and initiate the return process within 60 days of your purchase. Returns postage is typically paid for by the buyer unless otherwise specified in our terms and conditions.

 

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