Originally Posted by abhijeet080808

Are you sure? I thought B is common and gets power from A normally and from C when on High Beam. Maybe I got it wrong though!

And the 6A4 diodes heated up? They are rated at 6A and 35W is hardly 3A!

Anyways if the diode ckt would have worked, it would have been even simpler. Just a diode between the 2 bulbs +ve.

Originally Posted by rahuldevnath

Most of us are not satisfied with the level of illumination our bikes provide. For some few, who possess a Pulsar 220, the headlight is really good, and most of them are satisfied with it.

But for the lot, which includes me, there nothing know as enough light! Even before buying my 220, I had thought of using both the beams together, and finally, I have successfully tried and tested, such setup.

The usage idea is simple. The low beam works as a single beam, but when switchover to high beam, my low beam remains on, along with the high beam. (With a toggle switch to go back to stock setup)

The modification makes use of a relay, because the 220’s BCU does not simply allow both the bulbs to work, simply by shorting the two. Still, the mod is simple, and is fully reversible and does not need any kind of wire cutting, hence no problem with warranty with the bike or HID. The BCU is not all bad, as it automatically switches of the light in case of overload or severe battery drain.

This mod applies only to HIDs. As combined load of 2 HIDs is just 70W. We need to replace the Pilot Bulbs to LEDs saving 10W. So in stock mod our bulb setup consumes 2X5=10W + 55W = 65W. Where’s as twin HID’s consume 35W X 2 = 70W.


Setup is simple. The (+)Ve of the Low beam Bulb, goes to the relay at A. When the Low beam is selected the relay is not activated and low beam completes the circuit through point B and goes to the socket of Low Beam. When the High Beam is selected, the High Beam glows as well as the Relay get activated, and hence the low beam completes the circuit at C, and the low beam gets power through High Beam Socket. A Toggle switch, keeps the Relay deactivated even if high beam is selected.

So go ahead and have the best possible illumination on any Indian Stock Bike!

I have been testing it for last few days, and it does not affect the battery. In case of a problem with the relay, the bike simply returns to stock system.

BTW my HID is Raylux (CAR) 35W x 2, 6000K bought for 7000/- Rs.

Originally Posted by abhijeet080808

Ok, so diodes will work with normal bulbs but not HIDs (high initial draw)

Originally Posted by abhijeet080808

Ok, so diodes will work with normal bulbs but not HIDs (high initial draw)

And thanks for labeling that diagram! I thought the bulbs were at the bottom and the BCU connections at the top while actually it is the reverse. Hence my confusions!

Originally Posted by ravi3488

Excellent mod
though it will blind other people in the opposite direction.

Originally Posted by L.P.

@Rahul: Can you put both the diagrams showing what was the original circuit and what did you change!

Originally Posted by Shanz

I thought HID meant HIGH INTENSITY DISCHARGE..


Rahul bro tonnes of thanks for making things easier for me!
Soon I would be running on 4 projectors with 2 Hids and 2 halogens on my R15..
Thanks once again!!

Originally Posted by rahuldevnath

The whole relay setup is added.. anyways I have added a pic, without the whole stuff.

Originally Posted by rahuldevnath

BTW my HID is Raylux (CAR) 35W x 2, 6000K bought for 7000/- Rs.