hey guys reporting back on the light bulb modifications.
1. the housing can withstand 100/90w light bulb but best to have the ceramic adapter plug for the bulb just in case, i did not try with the original plug.
2. the light bulb i got was bright white 5000k if i remember correct which is good for road signs and lines at night but does not light the back ground or road surface very well or objects that do not reflect light well, such as animals, people, sand, poop... it is only good for road signs and road lines everything else thats also important to bike riders are pitch black.
my suggestion would to pick something slightly warmer then bright white blueish color which i think is a problem.. yellow or warm light would be better.
3. had a look at the lens design and mirror design of the head lamp on the venox... it looks nice but the lens is really not spreading the light coming from the mirrors that much because its too transparent.
right now i am trying to get my hands on Philips H4 rally bulbs which has a warmer color and also 100/90w to see if it will help with the summer night riding... but i really think its the lens and maybe the mirror that is limiting the performance of the head light.