Important Information Manual
< Page 1 >LED Retrot | FAQs
General – LED retrot
Question What is LED retrot? For which applications?
Answer LED retrot is a way for drivers to upgrade their old halogen/conventional bulbs to
more modern LED lights. In terms of which upgradable applications this applies to, it’s
helpful to separate interior and exterior lights:
Interior:
Roof and reading lights
Dashboard light
Glove compartment light
Trunk light
Exterior:
Headlights
Front / rear fog lights
Front position / parking lights (front and rear)
Front / rear indicators
License plate lights
3rd stop lights
Stop lights
Question How do I know if the Philips LED Retrot is compatible with my headlamp?
Answer Philips LED Retrot lights are compatible with a wide range of vehicle models. But to
check your specic car, take the following steps:
1. Measure the diameter of your headlamp and the space that you have behind the
headlight xture (i.e. the space behind the secured bulb). To be able to install the
LED retrot you need a minimum 60mm headlamp diameter and 70mm space
behind the xture.
2. Check if the connector is also used as a bulb holder. If this is the case, you won’t
be able to mount the LED Retrot.
If in doubt, please check with your dealer/installer and they’ll be able to help.
Question How do I know which LED I should use to replace my old bulb?
Answer Simply match up the LED with the corresponding ECE name. To make it easy, here is a
table matching halogen bulbs with the compatible LED version.
Halogen type LED name
H4 LED-HL[
˜
H4]
H7 LED-HL[
˜
H7]
H8/H11/H16 LED-FOG[
˜
H8/H11/H16]
Festoon T10,5x30mm LED-FEST[30mm]
Festoon T10,5x38mm LED-FEST[38mm]
Festoon T10,5x43mm LED-FEST[43mm]
W5W LED-T10[
˜
W5W]
W16W LED-T16[
˜
W16W]
W21W LED-T20[
˜
W21W]
W21/5W LED-T20[
˜
W21/5W]
WY21W LED-T20[
˜
WY21W]
P21W LED-S25[
˜
P21W]
PY21W LED-S25[
˜
PY21W]
P21/5W LED-S25[
˜
P21/5W]
- LED-CANbus[
˜
5W]
- LED-CANbus[
˜
21W]








