ELC vs. EVC lamps - What gives?

[polterbike]

Hello, newbie here looking for advice.

I've been putting together a low cost backlighting system for a rock band, no critical lighting involved, just an "ooh pretty lights" kinda thing. Main thrust here is remotely aimable, crisp, bright colors for mood. Using a low output hazer for beam definition.

Most of the fixtures I've seen in the sub $500 range use an ELC lamp, but I've seen a few with EVC's or EHJ's. In looking at bulb specs, it looks like EVC's and EHJ's have about 10 times the lumen output, cost less and last longer.

So why are ELC's so prevalent in this price range? It seems to me that if a decent reflector is used, an EVC fixture would bury an ELC fixture.

I must be missing some info here, any takers?

[Footer]

Check the color temp of the lamp.

[polterbike]

I see that an EVC is 3200k and an ELC is usually around 3400k, so the ELC would look whiter, cleaner.

Your experience then, is that this 200k difference in temperature has a pretty drastic effect? I guess I'm just going to have to see them side by side to understand fully. Thanks for the input.

[Chris15]

I am certain that ship will come along before too long and will be able to give you the details you were looking for.

[Chaos is Born]

The ELC would appear warmer in color when placed next to a EVC. Thats really all there is to it.

Depends on what your looking to do with the lamp. When i had Altmans and Source 4's i put the Source 4's on my cool wash cause they appear cooler to begin with and I would be able to get my desired effect easier.

[ship]

Originally Posted by Chris15

I am certain that ship will come along before too long and will be able to give you the details you were looking for.

Ah', thanks for the knod. You do of course realize that the difference between EVC and ELC is what got me into studying lamps for in part my living don't you? My old 1986 GE catalog I innitially was using didn't mention one had a reflector and one didn't. Imagine the problems there in what otherwise for listings is the same lamp for all intensive purposes.

[Chris15]

That would be rather an important difference.

[ship]

Originally Posted by Chris15

That would be rather an important difference.

Urr yea, but given I came from the theater industry and suddenly was thrown into being the buyer of lamps for the entertainment industry, who will have known. Probably still have a few of the origional 100 ELC lamps I bought and kept buying for a while in stock seven years later.


Bear with me, there is useful info in this sort of pet lamp to follow once I open up my notes on the lamp types - lots of them on the subject and efficiencies.

For now if you check out Pro sound web http://forums.delphiforums.com/light...es?msg=11245.9
you can see there was a time where I still didn't have it all understood and made one mistake in advice. On the other hand, I think by way abuse sent my way, I think I held myself up fairly well in direct response.

[polterbike]

"Ah', thanks for the knod. You do of course realize that the difference between EVC and ELC is what got me into studying lamps for in part my living don't you?"

Perfect, looks like I came to the right place!

So what's your take, ship, do we go with 8000 extra lumens or 200 extra kelvins for the most defined beam and color saturation?

[Chris15]

Originally Posted by polterbike

Perfect, looks like I came to the right place!

I suspect that you would be able to find answers to all your questions here, on all aspects of technical theatre. Welcome.

And as far as lamp questions go, Ship will know, or know in which book to look it up, I mean who else do you know that has $100K of lamps in stock.