You will be amazed and possibly temporarily blinded. Like staring into the sun. It is worth every penny in my opinion. Do the RTB conversion too and you'll dramatically increase your visibility.

 

I run all Custom Dynamics on my Road King (slant back and turn signals)
My wife was following me at night and kept dropping back, I asked her why, she said your rear light are too damn bright....that's good enough for me, rear light 120 LEDS, lifetime guarantee $149 - result

Not the best pic as taken in daylight in garage:

 

Same here. Bal-1 w/ R/B/T module and Custom Dynamics all around. Trucklight's on front 3 along w/ HD fogs on engine guard w/ HID bulbs. And I run high-beam during the day.

You can't have too much light, IMO. This is my first season having all these light upgrades, and I'm experiencing a noticeable difference on the road with respect to cars seeing me. It's hard to quantify I know, but trust me it is happening.

 

I have a multi-mountbrake/tail i mounted to mu rack,6 led's ,convex lens and very small,very bright.