Hi, I was thinking of buying this( http://shop4.outpost.com/product/3885277?s...H:MAIN_RSLT_PG) OHP lamp for my 5 inch lcd projector.

My question is how would I do the wiring? What do I need?

There are many types of those lamps for 3M projectors... all of which run off of 82V. It would probably be easier to find a used OHP on ebay, and use the provided transformer for a power supply...

Just a though...

These lamps are pretty inexpensive, but they also don't last very long...

cheers,
gs

Also check the local schools to see if they have any old ones that they don't
use anymore. I've gotten 4 of them that way, for the optics and the bulbs and
sockets.

Also, since I've used this in a 5in projector, lemme tell you something. Try to
find an OHP that takes an ANSI 360w ENX or 410w FXL, and use the FXL bulb.
Most of the sockets for that type of bulb take up to 300v and 400w (which the
410w FXL will work in without harm, from what I can tell). Or if you're worried,
just use whatever it's rated for.

This post has my most recent screenies in it, to give you an idea of what I'm
getting with mine. Good luck. It's definitely an inexpensive route to go, and
you pretty much just deal with the same heat as what everyone else runs here.

Some people will tell you that you only get 7-8000 lumens from these bulbs, but
these bulbs use the same style filament, and they get ~10,000 lumens from 360w.
Which means that with the same lumens per watt, a 410w gets you ~11,500.
Admittedly, the Metal Halide lamps are way better (a 400w bulb averages about
36,000 lumens), but this is a good cheap way to go for your first projector, if
that's what you're after. Since I was testing a concept, I didn't want to spend
about $100-125 for the bulb and ballast if I wasn't sure I would be able to build
it well.

Now that I know, I will... but I feel much more confident after doing my little test
projector.

But Can it be done using just a 120 v wall outlet? I would just need to add a Resistor to reduce the voltage to 82v? Thanks

If you're going to wire it yourself, from what I know, that's how you've got
to do it. It's much easier to get the guts out of the OHP, tho.

Hey, Do you have any problems with IR using the halogen lamp from the projector? In my current setup im using a philips 90w flood halogen lamp and it gets my lcd very hot. Does it happen like that too with you OHP lamp? thanks

I do, a little. It's not bad, because if you look at my finished projector in my
plog, I added an 80mm fan from behind the bulb, a 120mm above the bulb,
and a 92mm fan next to the LCD. I haven't checked my temperatures, but
I've run it for over a couple of hours and not had any issues yet. I'll post some
temps as soon as I get a chance.

OK thankyou