Philips MasterDuty 13972MDC1 24 V headlight bulb

Built to last
Maximum vibration resistance
The Philips MasterDuty headlight bulbs are designed for maximum vibration resistance and excellent lifetime. They provide up to 130% brighter light*. Philips MasterDuty is the right choice for drivers seeking toughness that lasts.

Durable lights with increased resistance to vibration
Philips MasterDuty features increased mount and base stiffness for ultimate protection against mechanical shock as well as a robust double-coil filament designed to withstand severe vibration while remaining stable. Philips MasterDuty provides drivers with an increased lifetime of up to 500 hours.

See further and react faster with up to 130% brighter light*
Perfect illumination is especially important in the distance — usually between 75–100 metres in front of your vehicle. Philips MasterDuty boosts your visibility with up to 130% brighter light* on the road. This helps you recognise obstacles and any potential dangers earlier than with most other halogen headlight lamps.

A lifetime of safety so you can see and be seen
Every potential failure of a spare part is a risk for you and your vehicle. This is especially true for headlights. Every broken headlight lamp reduces visibility and safety for you and the oncoming traffic. Philips MasterDuty is optimised for a long and reliable lifetime. You can see and be seen for longer than with any other high-performance lamp.

Among the safest road-legal headlights
Philips MasterDuty is among the safest, easiest and most efficient way to upgrade your lorry or bus headlights within legal parameters. The lights are fully ECE certified.

Philips is the choice of major car manufacturers
Technologically advanced Philips lighting is renowned in the automotive industry and has been for over 100 years. The Philips Original Equipment Quality products are designed and developed following strict quality control processes (including applicable ISO norms), leading to consistently high production standards. Philips MasterDuty is compatible with truck and bus models of major brands.