OSRAM 66440XN2 D4S XENARC NIGHT BREAKER 220 Xenon HID Bulbs – Twin Pack

OSRAM 66440XN2 D4S XENARC NIGHT BREAKER 220 Xenon HID Bulbs – Twin Pack

Experience OSRAM's most powerful xenon light with the XENARC NIGHT BREAKER 220 D4S. Designed for vehicles fitted with factory D4S HID xenon headlights, these premium performance lamps provide exceptional road illumination while retaining the correct original D4S fitment.

Compared with the minimum legal standard, XENARC NIGHT BREAKER 220 can provide up to 220% more brightness, a light beam reaching up to 250 metres and up to 20% whiter light. The increased light output helps improve forward visibility and allows hazards to be recognised sooner, while the whiter light provides a more modern appearance.

This listing is for the genuine OSRAM 66440XN2 twin pack, containing two D4S 35W XENARC NIGHT BREAKER 220 xenon bulbs.

Key Features

• Genuine OSRAM XENARC xenon HID technology
• Latest NIGHT BREAKER 220 performance range
• OSRAM product reference: 66440XN2
• D4S xenon headlight fitting
• 35W nominal power
• P32d-5 lamp base
• Up to 220% more brightness compared with the minimum legal standard
• Up to 250 metre long light beam
• Up to 20% whiter light
• Nominal luminous flux: 3200 lumens
• Designed for factory-fitted D4S xenon HID headlights
• ECE category D4S
• Supplied as a twin pack – 2 bulbs
• 3-year OSRAM guarantee
• Plastic-free OSRAM packaging

Technical Specifications

Vehicle Compatibility

These bulbs are designed for vehicles originally equipped with D4S HID xenon headlights.

They are a direct D4S replacement and use the standard P32d-5 base. They are not suitable for vehicles using D1S, D2S, D3S or halogen headlight bulbs.

Always check the bulb fitted to your vehicle before ordering. Vehicle manufacturers can use different headlight systems within the same model, year and trim level.

Why Replace Xenon Bulbs in Pairs?

OSRAM recommends replacing XENARC xenon lamps in pairs. Xenon lamps gradually change in brightness and light appearance as they age, so replacing both headlight bulbs together provides the best possible match between the left and right headlights.

Professional Installation Recommended

D4S xenon lighting systems operate using high-voltage electronic control equipment. OSRAM recommends that XENARC lamp replacement is carried out by a qualified professional.

The bulbs must only be operated with approved electronic control gear.

What's Included?

• 2 × Genuine OSRAM XENARC NIGHT BREAKER 220 D4S xenon bulbs
• Original OSRAM twin-pack packaging

Frequently Asked Questions

Is 66440XN2 a D4S bulb?
Yes. OSRAM 66440XN2 is the D4S version of the XENARC NIGHT BREAKER 220 range and uses a P32d-5 base.

How bright are OSRAM NIGHT BREAKER 220 D4S bulbs?
OSRAM states that XENARC NIGHT BREAKER 220 provides up to 220% more brightness compared with the minimum legal standard.

What is the light output?
The D4S 66440XN2 has a nominal luminous flux of 3200 lumens with a ±15% manufacturer tolerance.

How long is the beam?
OSRAM specifies a beam length of up to 250 metres.

Are NIGHT BREAKER 220 bulbs whiter?
Yes. OSRAM specifies up to 20% whiter light compared with the minimum legal standard.

Is this listing for one bulb or two?
This listing is for the OSRAM 66440XN2 twin pack containing two D4S xenon bulbs.

Should D4S xenon bulbs be replaced in pairs?
Yes. OSRAM recommends replacing XENARC lamps in pairs for the best matched headlight performance.

Can I replace a halogen bulb with these?
No. These bulbs are intended for vehicles already equipped with a compatible D4S HID xenon headlight system.