LET me give a complete review about these tubes,
1- H4( most common) can be fit in those head lights which have only (1) slot for tube, e.g mehran, coure, santro, alto, khayber, rolla indus shape and older, civic's 90-01 model,
2- 9005/9006 (new CARS) these can be easily fit on new generations e.g rolla new shapes 04-11 civic 03-11
3- H1 this can be fit on fog lights or in after market projectors head lamps, e.g rolla indus shape projectors, civic 92-00 projectors ON HIGH POINT
4- H3 these can also fit on some fog lamps or rolla's bumper lights or some after market projectors headlamps comes with H3 ports , my projectors lights have H3 in its projectors lens so.
5- H11 as USSI said, these are for also fog lamps, i remember i brought fog lamps for mehran and h11 fits in it so u can say these can also fit in aftermarket fog lamps too
R koi tube nhe bachi i think 