Standard Bulbs - 12V 21/5W W21/5W W3X16Q - Capless Brake & Tail

SKU: RU580
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Free standard delivery is available for eligible UK mainland orders. Charges may apply for express services and non-mainland destinations. See our delivery information for details.

The Standard Bulbs - 12V 21/5W W21/5W W3X16Q - Capless Brake & Tail is a replacement vehicle-lighting component that provides the specified lighting or signalling function when used in a compatible lamp unit. Its catalogue specification records 12 V electrical rating, W21/5W lamp type, W3x16q bulb socket, and Blister Pack container type. Use Ring reference RU580 when cross-checking the part. Confirm the reference, lamp type, voltage, wattage, base and fitting position before ordering; use only a road-legal specification for the intended exterior-lighting application.

  • Warranty Period - 1 Year
  • Manufactured to OEM quality
  • Direct replacement bulb
  • Single Blister Pack
Technical Info
  • E marked for legal use on UK roads
  • ECE - W21/5W
Size 20.5mm
Length 116
Thickness 29
Width 87
Weight 0.014
Voltage [V] 12
Rated Power [W] 21/5
Lamp Type W21/5W
Socket Type bulb W3x16q
Container Type Blister Pack
OEM Numbers YY04500889300
  • Vendor RING
  • SKU RU580
  • Barcode 5011274158071
  • LUCAS : LLB580
  • LUCAS : LLB580SR
  • LUCAS : LLB580T
  • NAPA : NBU1580
  • PHILIPS : 12066B2
  • PHILIPS : 12066CP