Home » Universal W21W LED Reverse Light Bulbs, 12V, 6000K White, 7443 582

Universal W21W LED Reverse Light Bulbs, 12V, 6000K White, 7443 582

SKU: 1005010346833687-WHITE-6000K
Emitting Color
Color Temperature
€12,39
-41% €21,07 €12,39

Upgrade your vehicle’s visibility with a compact, high-performance lighting pair: Universal W21W LED Reverse Light Bulbs. Designed for 12V systems, these 6000K xenon white LEDs deliver bright, instant light where you need it most—reverse, turn signal, parking indicators, or DRL. With a pair included, you get consistent color and brightness that perfectly matches modern lighting aesthetics.

Main Description

These 2-piece sets feature 40 SMD 1210 LED chips per bulb, delivering about 500 lumens per bulb while drawing only ~6W. The result is a crisp, clear light that enhances safety by improving rear visibility when backing up or signaling your intent. The 6000K xenon white light closely resembles factory HID lighting, making it easier for other drivers to spot you in various weather conditions.

Installation is straightforward with a plug-and-play design and instant startup. The bulbs are built to withstand shocks and vibration, so they stay reliable in everyday driving. They fit the commonly used 582 7440 W21W (single filament) and 580 7443 W21/5W (dual filament) sockets, and their compact size ensures compatibility with many light housings. Note that because bulb dimensions can differ from stock units, you should verify fitment in your vehicle’s light housing before purchase.

Important electrical considerations: if you’re replacing turn signal, braking, or DRL lighting with LED, some vehicles may require a load resistor to prevent hyper-flashing or fault codes. If the LED doesn’t light after installation, try reversing the polarity. The product is designed for ~12V systems and is rated for long life with immediate response.

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

At intercyprus.com since 2002 — trusted for quality and reliability.

Benefits & Tips

  • Bright, fast-acting 6000K white light improves rear visibility during back-up and signaling events.
  • Compact, plug-and-play design makes upgrading easy without extensive modification.
  • Versatile use across tail, brake, reverse, parking indicators, and DRL applications for a cohesive lighting upgrade.

Product Specifications

  • Bulb type: 582 7440 W21W (single filament) and 580 7443 W21/5W (dual filament)
  • Socket compatibility: T20 (7440) / 582 7440 and 580 7443 styles
  • Voltage: 12V
  • Wattage: ~6W per bulb
  • Lumens: ~500 per bulb
  • Color temperature: 6000K (xenon white)
  • LED chips: 40 SMD 1210 per bulb
  • Size: ~45mm length × ~21mm width; base size ~15.9 × 7.4 × 3.8 mm
  • Light duration: long-lasting with quick start-up
  • Key notes: polarity may affect operation; fitment varies by vehicle—verify compatibility with your light housing

Package includes:

  • 2x 582 7440, 580 7443, 992 LED light bulbs (40 SMD each)

Warnings / Reminders

  • Size and fitment vary from stock bulbs—confirm the LED bulb type matches your vehicle’s light housing before purchasing.
  • If used as a turn signal, brake, or DRL, some vehicles may require load resistors to prevent hyper-flashing or error codes.
  • If the LED light does not illuminate after installation, reverse the polarity and test again.
  • Working voltage is ~12V; ensure your vehicle electrical system is compatible before installation.