P21 4W LED Canbus Tail Light Bulb for Vehicles, 900 lm, 50k Hours

P21 4W LED Canbus Tail Light Bulb kit from ANGRONG is a compact, high-efficiency lighting upgrade designed for 12V vehicles. Delivering up to 900 lumens per bulb (1800 lm total) while drawing just 15W, these bulbs boost visibility for sidelights, indicators, tail lights, brake lights, and reverse lights. An integrated aluminium heatsink keeps the LEDs cool for long life, while an IP65 waterproof rating ensures reliable performance in rain, dust, and grime.

Engineered for CAN bus systems, these bulbs provide anti-hyper flash and a plug-and-play setup—no wiring or modifications required. Each unit uses 27 SMD 3030 LED chips arranged for 360-degree illumination, so your vehicle is clearly seen from every angle. With a stated lifespan of up to 50,000 hours, you’ll enjoy durable lighting that reduces maintenance and replacements while improving daytime and nighttime visibility.

Designed to fit a wide range of applications, these bulbs are suitable for Sidelight, Turn Signal, Parking Indicator light, Tail/Stop Light, Brake Light, Reverse Backup Light, and Daytime Running Light (DRL). They are available in White or Red to match your vehicle’s styling and compliance needs. The compact form factor slides into the same socket as the original incandescent P21/4W BAZ15d bulbs, offering an easy upgrade without modification.

Benefits & Tips

• 360-degree LED coverage delivers bright, uniform illumination, improving conspicuity for other motorists in daylight and at night.
• CAN bus compatibility minimizes warning errors and prevents hyper-flashing on modern vehicles—just plug in and drive.
• Tip: If the LED doesn’t light after installation, try reversing the polarity. Also verify that the bulb type and housing size are compatible with your vehicle before purchase.

Product specifications

• Bulb type: 566 P21/4W BAZ15d LED bulb (Canbus)
• LED chips: 27 x SMD 3030 per bulb
• Light color: White or Red
• Voltage: 12V DC
• Wattage: 15W per bulb (30W for the two-bulb kit)
• Lumens: 900 lm per bulb; 1800 lm total
• Material: Aluminium heatsink
• Lighting technology: LED with 360-degree illumination
• Diameter/size: Cross-reference with 566 (P21/4W) BAD15d bulbs
• Waterproof rating: IP65
• Operating temperature: -40°C to +90°C
• Lifespan: Up to 50,000 hours
• CAN bus compatibility: Yes; Anti-hyper flash: Yes
• Fitment: Sidelight, Turn Signal, Parking Indicator light, Tail/Stop Light, Brake Light, Reverse Backup Light, DRL
• Connection: Plug and play; Polarity-free installation
• Cross reference: 566 (P21/4W) BAD15d variants listed (1122, 7225, 12594, 621652, 637227)

Package includes:

• 2x High Power Canbus 566 P21/4W BAZ15d 15W 27 SMD 3030 LED Bulbs White / Red Sidelight Fog Daytime Running Tail Stop Brake Revers(e) Light Lamp

Warnings / Reminders

• The size of this 566 P21/4W BAZ15d LED bulb is slightly different from stock/OEM bulbs. Please ensure this bulb type is correct for your vehicle and that the light housing can accommodate the size before purchase.
• If the LED does not light after installation, try reversing polarity; ensure the bulb is correctly seated in the socket.

All electronic and mechanical equipment, devices and machines sold by InterCyprus to EU countries are CE certified and carry a two year warranty.

Since 2002, intercyprus.com has earned a reputation for reliable automotive lighting and dependable service.