Thanks for taking my word

U r right, keep the vents closed from the front and let some gap behind to give more air circulation. I think this is already done in all OE Hls. If u try to open a projector from a HL assy u can see this. Heat vents are provided at the back. I still remember once I had a chance to open a Laura projector. Its a full unit with ballast and everything is bolted to the lens assy as a whole and this unit again bolted to the HL assy. Once u pull it out u can see the gaps just below the lens. The front portion of the HL assy is acting as a shroud and if u closely observe from the front glass, there r air gaps more than 2mm between the HL assy and the lens.

But in that case also there should not be any dust accumulation in the glass or lens as its fully sealed and the heat vents are provided just behind the HL assy by using L shaped rubber tubes. So there's only a little chance to get the dust inside.

Nano, check for the front and back side of ur HL assy for any dust entry. In Pulsar HL assy is fully sealed once u close the glass and the bulb is installed with the black rubber cover is fixed. Check for the cover seatings onto the bulb base also check for the L shaped heat vent tubes are there or not. Its meant for protecting the dome from direct water splashes but at the same time its not letting the dust too.


Puneet, if u install the kit as per the manufacturer's instructions, no need of any extra cooling device is required, else they would've mentioned.

im thinking what if we add a small cpu fan at bottom of projector to make heat escape out , even on a 55 watt hid the projector will last very long i think this way

i completely agree with you sajan, you don't need to attach anything convincing more than your post.
from a long time I've been bothered with those vents, however YOU initially suggested me to attach clamp kind of things so that the air flow still remains without light leakage.

i trust you completely, but in my case when i opened the dome to re-adjust the beam as well as to check the relay and stuff, the problem I've been facing with high beam, i noticed that a lot of dust had been settled down inside the reflective surface of the projector.

hence i closed it, but it still is very much open, it still leaks light, and is still well ventilated, but comparatively less so that it doesn't get dusted, as it really affects the brightness of the projector.

but i clearly remember in many videos on youtube that they mentioned to close all the vents to PREVENT HEAT from escaping out, i could have asked it that day itself, but i trusted you more than anyone and without any second thoughts did what you recommended to leave the vents open.

i just mentioned here as a similar doubt had been put up.

but i still say, in my own opinion, to keep the vents ABOVE the projector closed so that the dust doesn't settle inside and keep the ones BELOW the projector open to keep it cooler.
as dust doesn't enter from below, gravity makes it fall downwards.

For the time being here r some of the projector comparisons for the heat vents are provided by various manufacturers





Bosch Bi Xen



Another one




I think u guys r talking about this:




Its an FXR type which is known for its quality and the price. But the manufacturers are clever enough to provide enough heat vents as much as possible on the sides but not that visible from the pic.

Ok, come up with the new setup in action

Thanks a ton for the nth time Sajjan!
I mounted my setup with a spare reflector and it was successful!
once i complete the proper setup ill come to you with it for advice on the shroud and abt closing the gaps!
thanks again man!

Dude, I've posted a small briefing about the heat vents on the previous post. Its a must for any light source emitting heat. I've read some write ups about this but cant recollect the source right now. Its as simple as common logic.

I've also seen the videos both u guys mentioned and they are mainly for restricting the light coming thru the sides and I guess there should be enough other heat vent to compensate this. If u happen to dismantle any OE projector, all these projectors are open with these vents to make sure enough heat vents and the shroud will take care of this issue. I dont know how to prove or convince u guys for the time being as I dont've much supporting facts to attach

Let me try to get some links to help this

Its obvious to have heat vents in a light source and most of us know that the HID tube will heats up to a higher temp at the initialization time and once its stabilized, it will come to a cooler state than a normal halogen. There are heat vents even in the normal reflector back by using a L shaped rubber tubing. So what ever on the lens be there for the good health of ur bulb as well as the reflector coating.

Shrouds are mainly limiting the light coming out of the sides of projectors and it gives a neat and finished look from outside. So if u tamper or alter a shroud I would suggest to keep those vents to be open.

My projector is not closed completely, the shroud is just sitting on the lens and by that its limiting light coming out of the sides.

Here's the some snaps:

Projector is mounted on the reflector, note the lens holder on which the shroud will be locked.



With shroud


Note the gap in between



The shroud is just sitting just above the reflector and there's enough gap in between



See the lights are coming out of the sides but its negligible compared to the output through the lens.

No projectors will be designed without proper heat vents as its a must AFAIK.

Ranjith, make a call and come over to my place, so that we can discuss in detail

ah...so im not the only one with this doubt!
another Question is...if HID do need to vent the heat out....then how come when HID's work fine without any vents when they are fit into our normal reflectors(without proj.)?

@Nano
yep..even most of the vids i saw closed them up!
with what have you closed the vents?and how long have you been running it like that?

even i wanted to ask this to Sajan.
when i was working on my setup, i did see some youtube videos, however EVERYWHERE they mentioned to close all the vents on the projectors to PREVENT heat from escaping out.

almost in every video i heard it, but i wasn't confident as they are right or not.

besides a personal thing and experience says that after CLOSING the projector, it doesn't give out any difference in the way the bulb lights up, it takes the same time to glow to full intensity, and glows equally bright too, the only difference is that the inner part of the projector doesn't dust up as it does with open vents.

i closed it just to prevent dust as well as to prevent lighting up of my dome from the inside and forks etc on keeping the low beam on, just to avoid light leakage that occured with open vents, but still i am not sure weather keeping it closed is good, or keeping it open.

Sajjan bhai
im still not clear about this...the shrouds will end up closing those heat vents anyway right?
for eg.even your projectors shroud is completely closed up right?then from from where is the heat escaping?
and i have also seen some sealed projectors tht are closed up even without shrouds?
and the foll. is a reply i got from another forum
pls do give your insight on this!

Thanks a ton!

Thanks a lot Nano!
but unlike the fiero the FZ has a black base...

ac+dc setup is tricky.

you have 2 options...

• CONVERT AC+DC TO FULL DC USING REWINDING AND RECTIFIER AND REGULATOR CHANGE.
• OR BY INCREASE THE CHARGING RATE BY USING A BRIDGE RECTIFIER OF YOUR AC PART.

If you dont know about anything of these please go through nano tecnologys thread in helpme section.

remember its can be done.
REMEMBER ITS NOT A JOB THAT CAN BE DONE BY ANY AUTO MECH!

HID Kit for Bajaj Discover 125CC?

Respected Experts,

Hello! This is Apoorva from Mumbai. I have posted my query about installing an HID Kit in my Bajaj Discover 125CC DTSi bike however; I haven't received that effective reply from that thread. Seems like I posted my query under wrong section so, I would like you to visit this link please and help me in achieving success of getting the HID Kit on my Bajaj Discover Bike please.

Also, I feel that from the specs provided about my bike in the booklet, it is a DC+AC however, on that link, I am being replied that my bike is an AC so I first need to get it converted to DC....which I feel isn't the case. So, kindly assist me on that as well.

Thanks all for the efforts!

HID Kit for Bajaj Discover 125CC?

Check the voltages at the battery at different rpms with both the HIDs ON and report it here.

This draining is with single or dual HIDs?

I was thinking of buying this bike, if it does not even support a single HID, I will have to do rewinding on a new bike!!