Is it easy to change the bulbs? I have some 6000k I want to try out 

Depends how you define easy... 

It's quite straightforward, but you have to remove the headlight and the bulb retaining rings can be very tight. It doesn't help that access to the retaining rings is very restricted. I found it easier to access from the side access panel rather than the back. Turn the retainer about an eighth of a turn - it only turns one way, but some force is required and it might feel like you're going to break it - then you can pull the bulb out. 

Once you've done one then you can see how the retainer works, which makes the second one a lot easier. 

That's great, thank you I'll give it a go 

Any tools made it easier to turn the retainer? 

Fingers and patience 😁

Using tools isn't that practical as it is very tight, and if the tools slip it's very expensive new headlight time. Just take your time on the first one and it will come out after some swearing. 

The first one took me half an hour; the second about 5 minutes. 

Thanks mate 

23 hours ago, erictcleric said:

Fingers and patience 😁

Using tools isn't that practical as it is very tight, and if the tools slip it's very expensive new headlight time. Just take your time on the first one and it will come out after some swearing. 

The first one took me half an hour; the second about 5 minutes. 

Can you remember which way to turn the retainer? 

Anticlockwise, if you're looking at the back of the headlight, I think - but it's been a while. It will only turn one way. Try moving it by very small amounts and it should come loose eventually. 

As an additional thought, you could try using rubber gloves. That should give a bit more grip, plus protect the bulb and holder. 

Thanks for you help mate, changed them over this morning.