I fitted the powerful uk units with LED sidelights on my CANBUS Plus 8. Fitted a resistor in the wiring but found that it got hot.
Solution? Keep the old side lamp bulb and leave it in the bowl behind the light unit, Simples!

1969 4/4
1995 plus 8
1996 Plus 4 4seater
2002 Aero S1
2013 M3W
2014 Plus 8