Consider changing low beam headlight either bulbOR HIDconversion kit. Any recommendations for both Bulb and HID conversion kit are appreciated. Thanks.

 

Get a cheap HID kit from eBay...they all come as a complete kit. Very easy to install, plug and play.
I just got a kit for my g/f for $75.
I paid $200 for mine a couple of years ago and I've never had a problem except one time one of the bulbs changed color a little bit so I got a new pair, since then it's working great.
They are so cheap now, if it ever gives you hard time, just get another kit or parts...which I doubt it will happen...
and I don't see any differences between expensive($300-$400) and inexpensive(~$75 ebay) ones.
And expensive bulbs cost like 50 bucks...

 

I'd say HID, but there are differances in the kits. A kit with an electronic (digital) ballast will outperform and outlive a magnetic (analogue) ballast. Also, they correct the power output to ensure equal lighting. I'd expect a good ebay kit to be about $125-150. For bulbs, I used to have a high power relay setup and 80W low beams and 100W high beams ..... they were pretty powerful. When I changed to TYC projectors, I used the H1 bulbs that they came with for a while and then upgraded to HID. The HID output from the projectors is a bit better than the high power bulbs, but not much. Feel free to look at my pics for an example of my lighting.