Fitted four LED brake lights, since then my tail lights don’t seem to come on. Doesn’t matter what light mode I’ve got the dial set to.

The brake lights work fine, reverse lights, indicators etc, all front lights work.

I’ve not had it long so could be just me being a noob, but the I’ve been through all the lights section of the manual and can’t see anything I’ve done wrong.

Could it be the LEDs have knackered the centre bayonet bulb? Open to any advice. I’ve tried finding the correct bulb but ABD don’t seem to have the right ones. From what I can tell I need a H6W 12V 5w?

Thanks in advance.