If it is of any consequence this exact type of post appears on almost every car forum and there is always the polarised view.
They pass the "Ministry of Transport" legal requirements for light quality, quantity and aim, they pass. so, they cannot be illegal by definition.
it is illegal to drive at 31mph in a 30, 41mph in a 40 etc etc to have fog lights on when it's fine, to drive through a stop sign,,,,,,,
If you have a well set up system are considerate to others it is not deemed to be in the same catagory of offence as undertaking a marked police car doing 150mph on the M1 in the nude!
People get so sanctimonious and preach from the altar about the wrongs of it.
It happens get over it, go on ebay and acquire a life outside of lecturing! If I get stopped by the Police what can they do? charge me with wrongful illumination? its my choice or the individuals concerned.
For what it's worth, I DID ask a "Tango division" officer about them once! he said there was nothing I could be charged with other than unsafe vehicle and retest basically, that was back in 2003 when i first got me a set since then, I have had MOT's every year dealer services, driven past more police cars than I can recall.
It doesn't make me a bad person