Home » Universal H21W BAY9S LED Reverse Light, 10-SMD, 6000K Xenon White

Universal H21W BAY9S LED Reverse Light, 10-SMD, 6000K Xenon White

SKU: 1005010332575433-WHITE-6000K
Emitting Color
Color Temperature
€7,47
-41% €12,71 €7,47

Upgrade your vehicle’s rear and surround lighting with the Universal H21W BAY9S LED Reverse Light kit from ANGRONG. This compact, high-power two-pack uses 10 SMD 5630 LEDs per bulb to deliver a bright xenon-white 6000K glow, improving visibility for reversing, parking, and signaling in low-light conditions. Designed for universal BAY9S sockets and 12V systems, these bulbs plug in with no wiring or modification required, giving you a fast, reliable upgrade over traditional incandescent lamps.

Why this matters: clearer rear illumination reduces blind spots when backing into tight spaces, and a crisp white light enhances the perception of your signals to other drivers. The 4W-per-bulb design provides strong brightness without excessive draw on your electrical system, helping you save battery power while maintaining excellent visibility. The compact 37mm length, 12mm width, and 9.2mm OEM-style socket ensure a snug fit in many light housings. Keep in mind BAY9S variants can differ slightly from stock bulbs, so please verify compatibility with your vehicle’s housing before purchasing. Although not a CAN-Bus lamp, some cars with CAN-Bus wiring may still show an error message; if it occurs, a load resistor installed in the circuit can resolve it. If a bulb doesn’t light after installation, try reversing its polarity. Cross reference: 435 H21W BAY9s 433D 6021 68191 64136 12356 2-B miniature bayonet.

Benefits & Tips

  • Effortless plug-and-play upgrade—no wiring or tools required, just swap and go for immediate improved visibility.
  • Versatile lighting for multiple roles: reverse light, side indicator, parking light, driving light, or DRL, all with a bright xenon-white glow.
  • Energy-efficient and long-lasting—4W per lamp with 320 lumens, delivering bright output without excessive power draw or frequent replacements.

Product specifications

  • Bulb type: H21W BAY9s (435 H21W BAY9s) – 2-B miniature bayonet
  • LED technology: 10 x 5630 SMD per bulb
  • Light color: Xenon white, 6000K
  • Voltage: 12V DC
  • Wattage: 4W per lamp
  • Lumen output: ~320 lumens per lamp
  • Socket compatibility: BAY9s / 435 H21W
  • Size (L x W): 37mm x 12mm; OEM socket opening ~9.2mm
  • Package: 2 bulbs included
  • Applications: Side Light, Indicator, Parking, Driving Light, Reverse Light, Daytime Running Light (DRL)
  • Cross reference: 435 H21W BAY9s 433D 6021 68191 64136 12356 2-B miniature bayonet
  • Origin: Mainland China

Package includes:

  • 2x H21W BAY9s 10 SMD 5630 LED indicator reverse sidelight light bulbs xenon white

Warnings / Reminders

  • Not a CAN-Bus lamp by design, but some vehicles with CAN-Bus wiring may still display an error; if this happens, consider adding a load resistor to the circuit.
  • Confirm exact bulb type and housing compatibility before purchasing, as BAY9S sizes can differ slightly from stock bulbs.
  • If the lamp does not illuminate after installation, check polarity and re-connect, ensuring a proper seating 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.

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