I am from India and I own a Bajaj Pulsar 180 UG4 2012 motorcycle. I travel on the highway while coming back home from the office at night. I am not satisfied with the brightness of my stock head lamp, so I am looking for an alternative. While surfing I came across a link that suggests HID's but I am not interested in them. I also came across a link that suggests 60/65W H4 xenon bulb but I don't know if I could use them in my bike. You can get some technical info about bike here and here.

I am not a technical guy so I ask that you please explain things more clearly, for example if you suggest a part or refer an existing part then please explain what those parts are and what they do. This will improve my knowledge and I would be able to perform the work myself at home.


  • Why aren't you interested in HIDs? HIDs are the quickest and least expensive way to produce more light from the hardware you already have. Nov 7, 2012 at 17:20
  • @hillsons: I guess HID's would be more expensive and will attract cops that's why I am not sure if I should go for HID.
    – Sandy
    Nov 8, 2012 at 3:59

1 Answer 1


You must make sure before changing to a higher wattage headlamp bulb such as a 60/65W H4 that all the wiring and switches for the headlamp are able to carry the additional current that a higher wattage bulb will draw.

Your current headlamp is listed as a 35/35W, so the 60/65W will draw nearly twice as much current.

Without knowing what type of wiring and switches are provided on your bike, I would suggest getting a headlight relay kit before changing bulbs to the H4. The relay kit provides all new wiring to go straight from the motorcycle's battery to the headlight bulb, and relays, which are like remote controlled switches for the high-current headlight bulbs. Your existing wiring and handlebar hi-beam switch will now control the relays, which will turn on the low and high beam.

If you get such a relay kit, you can definitely safely run the H4 bulb on your bike. The relay wiring kit provides a "big pipe" for the electricity to flow through to your headlights, ensuring that you get full voltage and therefore full brightness out of your headlight bulb.

In actual fact, a headlight relay kit is a good upgrade for nearly any motorcycle. Cars almost always come with relays for headlights, motorcycles almost never do. Therefore you have a big potential for increased brightness even with the factory bulbs.

Well-reputed relay kits are available from eastern beaver, and the owner is a very helpful guy who can walk you through the process.

NOTE: I am in no way affiliated with Eastern Beaver. Similar products may be available elsewhere.

Another option would be to leave your headlights alone and add "accessory lights" such as driving lights or fog lights. There are high-powered LED lights available that have very low power requirements, which make them great for smaller motorcycles.

  • I'd look into the LED method myself. I've found that LED aircraft lights are MUCH superior to the Quartz Halogen models that they replace (despite only being rated for similar output). Nov 7, 2012 at 16:44
  • Thanks for such a nice reply. I would definitely look into relay kit option.
    – Sandy
    Nov 8, 2012 at 4:02
  • Do think about some LED driving lamps. That'd be my first choice--I put them on my motorcycle. Having many lights (headlight plus two driving lights) helps other vehicles see me better, too.
    – mac
    Nov 8, 2012 at 15:55

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