with my dark rear lights it would have been necessary, with my new absolutely clear rear lights it is absolutely obligatory that I have reflectors at the rear of the car cardboard, since the lamps have no at all. that the dinger have to be red and not orange or white is already known to me. that they may not be rectangular (= trailer) is also somehow still in memory to me. can they not be anything else? round or rectangular is not important or? main thing ro t right? and do they have to have an e-sign again? in itself reflector is the same reflector but I think there must be a thick E again, so that no one complains. but what about the mounting height? if I remember correctly there was a minimum height above the floor where they had to be attached.