Funny Aussie Lamps

[Grog12]

Originally Posted by Hanging a Light

When a light is hung upside down, the little wires inside the lamp (called the filament) get strETChed in the wrong direction making the lamp likely to blow very quickly. Getting this part right will save you money.

What? I have never once heard this...what happens if you put the lamp in backwards then?

Seems to me the best reason to not hang a light upside down would be the color falling out

[gafftaper]

There are some lamps that have position requirements. Some say "burn base down" meaning they must always be pointed up. Others are rated "base down to horizontal" meaning they can go as far as horizontal but if they go any farther you are going to kill them. Nothing Aussie weird about them, they are in use here as well. We had some in college that were "base down to horizontal" and you had to be very careful about how you placed the instrument. Life before the HPL! That's about all I know. This sounds like a topic for Ship to give us the full details on...

OH SHIP... you out there buddy?

[Grog12]

Life before HPL nothing life before FLK!

[Hughesie]

FUNNY AUSSIE LAMPS

excuse me?

[gafftaper]

You know how much I would love to blame this on your Metric Voo Doo Hughesie... but I'm afraid this one isn't your fault.

[Logos]

Hanging older theatre lanterns upside down can open a world of pain.
Over heating can happen because ventilation used to be on the top only. I walked into a theatre once where six old fashioned fresnels had been hung upside down and the very young tech was standing on the floor wondering why they were smoking. The paint was burning off the top. A few seconds after I walked in before I'd had the chance to run them down two of the lamps blew explosively.
I'm with Gafftaper, some lamps need to burn base down, shortens their life if you don't. Don't know the theory but I'm sure Ship can explain.
Then of course there is all the stuff on the front, barn doors, colour frames, top hats, donuts you name it. Not many older lamps have working retainer clips. I've actually seen things like barn doors gaffer'd to lamps to stop them falling off.
PAR cans can hang anyway you like upside down or sideways. Enjoy.
Any way what do you mean funny Aussie lamps? If we do it it's right. We are Gods.

[Grog12]

If you go to the Nuwiki on hanging a light you'll see what I mean....
Hanging a Light

[Logos]

OK I had a look. Not a lot wrong there. The point that US C-Clamps and Australian/UK Hook clamps are completely different beasts now appears. I will give it some more thought.
Hughsie pretty good definition. I made a couple of spelling alterations and put in the C-Clamp thing. Can we post pictures in Nu Wiki? Might do that just to show the difference.

[gafftaper]

Ok, I see what you're talking about now. Well most folks down under use Selecon and Selecon doesn't use an HPL lampj. Due to the banana shape their lamps mount straight up. I can certainly see how it would be bad to mount one upside down due to the heat management sytem. The things are designed so that as much IR as possible is passed out the top of the lamp through a heat sink, while the visible light is aimed forward by a cold mirror. If you mount one upside down your heat will want to come right back up into the instrument instead, which can't be good. I don't know what kinds of lamps they are using but it could be that they are using something that is a "burn base down to horizontal"... which again makes sense due to the way heat is dealt with.

On the other hand up here with a Source 4, Shakespeare, or SL... it's almost impossible to mount one upside down due the the fact the lamp points straight in the back.

Let's wait and see if Ship can give us a lesson on position specific lamps.

[Hughesie]

Originally Posted by gafftaper

You know how much I would love to blame this on your Metric Voo Doo Hughesie... but I'm afraid this one isn't your fault.

i know you would, but you just can't come up with enough evidence

Imperialists suck