I have no idea why car manufacturers bother fitting side lights (well, maybe as parking lights). You either want your lights on or not. If you don't want them on, it will be broad daylight and you can both see AND be seen. If you want lights on it is either because visibility is bad (dark, grey, raining, foggy, drizzle) or you want to be seen (small low car, bad road, bad weather etc.). People that put sidelights on are, in my opinion, morons - I'm not calling you a moron by the way as you seem to be fitting LED's to enhance the look of the bowls when your lights are on ;-) The number of grey cars that drive in the middle lane of the motorway in rain with sidelights on (or even no lights on!) quite clearly have no concept of how impossible they are to be seen.