Home > Land Rover Discovery 4 L319 2010-2016 > Bulbs & Upgrades > Standard Fitment Philips Bulbs

Standard Fitment Philips Bulbs

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REVERSE LIGHTS  - 382
NUMBER PLATE LIGHTS - 501
FRONT SIDE LIGHTS - 501
FRONT INDICATORS HP24W (LR014111) VIN AA000001-DA999999
FRONT INDICATORS PSY24W (LR015296) VIN EA000001-
FRONT DRL 21/5 BULB IN HEADLAMP UNIT EA000001-  580 
INTERIOR LIGHTS - 501
MAP LIGHTS - 501
PUDDLE LIGHTS - 501
FOOTWELL LIGHTS - 501
BOOT LIGHT - 501
VANITY MIRROR LIGHT - 286
FRONT FOG LAMPS - H11 
REAR FOG LAMPS - 382 
SIDE REPEATERS - 501
HEADLAMPS - IF HALOGEN  - H7 FOR DIP AND HIGH TO MY13
HEADLAMPS - IF XENON DIP IS D3S & HIGH BEAM IS H7
HEADLAMPS MY15 HALOGEN - H1R2

Warranty - Because of the way a filament bulb is designed we cannot offer any warranty on them. We choose instead to offer the best available from known quality sources. The laws of physics dictate that there is no such thing as an incandescent (halogen) bulb that can last forever. When current flows through a filament some of the filament inevitably vaporizes. After a while this results in the filament burning out.

It is possible to design an incandescent bulb so that it lasts a long time. However, there is always a compromise involved because the luminous efficacy is reduced (i.e. the amount of light that can be generated from a particular input power). The filament can be operated at a lower temperature, or a thicker filament can be used, so that it takes longer for the filament to vaporize and burn out.

An important consideration is safety. Bulbs with an extremely long life would not meet current requirements for headlights. Because they would not generate sufficient light output to make a satisfactory beam pattern.