Tim, how do you know they are legal if the are so bright?
If they aren't then no doubt I'll get my collar felt by the rozzers and get sent down for a long stretch in chokey where I have to share a cell with Big Mal who will like to play mummies and daddies after lights out.
Or alternatively no-one will ever notice as the bulbs are supplied by a well-established specialist in vehicle lighting who has ensured they are not too bright for road use.
