I've tried to find answers on my own and to prevent starting one too many threads I've got two questions. First is about lights; if I install led headlights(hi or low beams), brake lights or rear turn signal lights, do I need to also install an equalizer(I think that's what it's called)?
And question #2 is about handlebar risers. If I get the knot/pain at the base of my neck between my s/blades on longer rides, do I want the bars lower or higher? Thanks!

Elroy