ok bro u can fit those high intensity blubs in any standard lights.crystal light will give it a slightly more clearer beam.ok there r various types i personally like the one that give out a hint of blue tint.i think it is called plasma blue.they also make ice white and list list goes on.beware there r imitations aswell.these bulbs come in almost every standard fittings like h4,h1.all u do is take the standard bulb out and fit the plasma blue in.u do not need to change anything.i bought these bulb from f 10 islamabad for 750 i think that was the best one he had.i installed the bulbs in my civic it gave me 50% more light.the light was very sharp and use to cut through the fog.if u want to see the diffrerance first fit one and compare your lights.i highly recomend it it dont matter if its a mehran or civic.hids is a totally different concept very expensive although they live literlay forever.,but once u have a knock u can loose a lot of money.