Hi. Hope someone can help? I have a 2000 swift challenger 480. The high level brake light has stopped working and seem to have water ingress. The seal and light framework are all fine but it seems the bulbs need replacing. Does anyone known the bulb spec? The part number of the housing is 146 334 and a hella unit holding 7 bulbs, the unit also quotes 12v 2,3w 1,5cp although can't seem to find what these should be online. Looking to fit new bulbs instead of replacing whole unit of possible.