I am looking to upgrade my lights and I'm doubting of what is the best choice. Someone suggested me using HID lights is better than the others. He gave me this site xenonpro for me to buy. Has someone have other suggestions which you think is better?

 

Here's what I did to my '95 Grand Marquis Restoration:
Replaced all Parking Lites, Turn Signal Lites, & License Plate Lites, with LEDs.
Replaced all Interior Lites with LEDs.
Replaced Headlights with new units -- available at Amazon.com .
60 Watt HI-Beam Bulbs, 55 Watt LO-Beam Bulbs (bulbs available at NAPA).
You will need to install resistors with the tail-lites and front turn signals -- to prevent hyper-flashing.
I installed HIDs for the headlights, but that was a forking disaster. The lights failed without warning -- total blackness at midnight !!

I suggest that you AVOID the HIDs -- unless your vehicle had them from the factory.
There are a few brands of "high-performance" bulbs for your headlights, which sell for around 40 dollars per pair -- DON'T waste your money !! The SLIGHT increase in visibility is barely noticeable, and the bulbs burn out pretty quickly !
The most bang for the buck is the NAPA Auto Parts bulbs -- 60-Watts for the HI-beam, and 55 Watts for the LO-beam.