Ishan, actually for city driving in delhi upgrade is not needed as street lighting is excellent. But for highways stock bulbs fail. So you have 2 options while upgrading
1. The least pain way
Get Vision+ or Silverstar or Philips Exreme power plus(may not be in India) 60/55W and enjoy more light. No relays, no wirings needed.
2. Some pain way
This way will get you more light. Get the above mentioned bulbs or something like Narva etc., in 100/90W
But make sure you have wiring harness and Relays. Otherwise its like putting load on your electrical system and you wont get full output.
But a high wattage bulb can blow if high+low beam is used continuously for a long time(minor flashes are okay). So have to be careful in that.
This will make a big difference to your lighting, but all said, a very important criteria is headlight aiming. I have seen cars with good headlight failing to light up the road because of improper adjustment of headlights. It can be done within 5 minutes by parking against a wall and twisting the screws, and will make quite a bit of the difference.
Another factor is your reflectors. Reflectors get dirty with time, esp in old cars due to moisture, pollution etc., and rubber environmental sealing deteriorates. A bad reflector will make your light output suffer quite a bit.
The solution is to get your headlight cleaned from inside including front glass if this happens.
If there is moisture formation, a good way to get rid of it is take out the bulb, hang in a silica gel pouch and park in sun. After couple of hours you can take out the silica gel pouch and moisture gone |