Note: Threaded lamp – only daytime running light 21 W – ideal for retrofitting in daytime running lights. Thanks to the blue glass, these super white daytime running lights produce white light. Easy replacement for identical standard lamps. Technical data: 2 pieces (1 pair) daytime running light bulbs 1 phase for use in all lights 12 V with W21 W socket. Brand: Old-Harvest / Voltage: 12V / Power: 21W / Diameter: 21mm / Length: 44mm / Socket: W21W (W3x16d) / Colour: Xenon White / Super White