I checked suppliers for the Luxeon LEDs & none of the suppliers claim they are E marked. So you may want to take a chance fitting them. My Philips +130 are E marked & do give noticeably more illumination. If you go for LED side lights with Halogen headlamps maybe best to get ones with ceramic caps as plastic caps may melt.
I suspect the poor night vision may be because your eyeline is only a little above the lamps. Sitting low you will always be more likely to be dazzled.