Krusty
CCCUK Member
Might seem a really dumb question 
I have aftermarket Xenon bulbs with ballasts in my 2001 C5. My drivers side sometimes has a moment to wake up compared to the passenger side.
Also when switching between high and low beam on a dark road, they take a few seconds to 'warm up'



which is scary as hell!!! 


So I want to swap them to an LED alternative (keeping with the times). But I just can't seem to simply find out what bulbs are used in both the high and low beams??? I keep getting mixed results 🫠
Am I right in thinking the low/dipped beam is a HB3/9005 bulb and the high beam a HB4/9006 bulb???
If anyone could help me out?
Also, what is required to gain access to the bulbs?
Cheers


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
I have aftermarket Xenon bulbs with ballasts in my 2001 C5. My drivers side sometimes has a moment to wake up compared to the passenger side.
Also when switching between high and low beam on a dark road, they take a few seconds to 'warm up'








So I want to swap them to an LED alternative (keeping with the times). But I just can't seem to simply find out what bulbs are used in both the high and low beams??? I keep getting mixed results 🫠
Am I right in thinking the low/dipped beam is a HB3/9005 bulb and the high beam a HB4/9006 bulb???
If anyone could help me out?
Also, what is required to gain access to the bulbs?
Cheers



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