“I took a look at the 10"
Fresnel and it has a CYX Lamp which looks to read 2K on the watts.”
10" Fixtures with a CYX lamp, those are studio/movie lamps. I keep at least 16 CYX lamps in
stock at all times - more like 20 or 30 but they are always out on shows.
And you want to get rid of them? 10" size, they are probably rated for a 5Kw load and very expensive - like hundreds of dollars each. What size
wire is feeding it, 14/3 Suprenat Heatzone, or 6/3 SO with a
switch and 60 amp
plug? That’s because a Altaman #2000L has about a 6"
lens for it’s CYX lamp but uses the 14/3, but a 10"
Altman 5000L uses a 5K DPY lamp and huge
plug.
I have experience with them and similar 10"
Strand Bambinos, but no others that are 10" but have a 2Kw lamp. Could be a
stage light in that size
lens with a high for
stage wattage lamp, but it’s also possible that it’s a studio
Fresnel lamped down. In either case, that
Fresnel is worth money given appropriate 6Kw dimmers or
dimmer per
circuit to make them useful. Certainly your
Parnel is not going to have anywhere near the output. It’s not even near a applicable replacement on beam spread alone much less lamp
intensity. 59,000 Lumens verses at best 22,000 Lumens per lamp.
Here is something of interest, Thorn/GE aka Nelson Lamps ( L.E. Nelson Sales Corp (702)367-3656 (Lamp Distributer) ) no website they are barbarians but are the only true Thorn distributer for that
line - others like All bulbs buy from them for Thorn. They list a improved CYX lamp that might be worth a try if your
color temperature is too low. (HX-2400/CYX G.E./Thorn Planar
Grid Filmt. 2.4Kw/115v G-38 3,200°K/400hr - that's all the info on the lamp that exists at this time since Thorn itself proper also does not have a website.
It’s a FLK/HX-600/
HPL type 115v lamp that would have that higher blue
color temperature and has 100more hours of life, plus I expect even though the specs are not completely out on the lamp yet, it’s going to have a larger Luminous output especially since it’s 115v. I considered switching my own 2K studio Fresnels to it but it would cost too much to do a lamp swap and as yet nobody has asked for a more intense lamp than a normal CYX when they didn’t already request a 5K
fixture.
In other words, if you lamps are dim at full output compared to a
ETC fixture, go for the upgraded lamp than see if you want to
switch because one of these 10" Fresnels is worth at least two 6" fresnels or Parnels if not more.
That said, if you are not using them for their full 2Kw output, and I cannot see a reason to be using them at full 2Kw on a
stage, I would look into just lampping them down to 1Kw without necessitating new fixtures. Look into the following:
Q1000T20BP G.E. #41734 CL, Quartz 1 Kw/120v T-20 cc-8
LCL 4" Mog. BP/G-38 3,050°K 22,400 Lum 3,000hr.
It’s
LCL is 1" smaller than that of a CYX, but adding 1" of steel or aluminum plate under a lamp
base for that amount of life is easy to do. Go for the improved
Altman pulse rated #58-0003 lamp
base if you can, it's better if not of the Euro rectangular style that most fixtures have gone to that don't mount to the same mounting screws as the older version. G-38 lamp bases are a pain in the rear - there is two versions out there now.
Otherwise, there is the CYV that has a 1Kw resistance but only 200hrs life. Remember a
HPL is only 300hrs so that’s no big deal considering the lamps will usually be under a
dimmer. As long as you are not also using them for work lights, it should be fine. Philips #6995Y if still available lists a 240hr version CYV off their Euro catalog as the best, otherwise Philps and Ushio make the highest
lumen output lamps on the market for a CYV. Your CYX what ever brand only lists a 300 hr. life in the first place anyway, (Osram and Wiko are the worst output by the way.)
There is also the 1.5Kw CXZ at 325hrs. Anything but Osram and Wiko will be of the best
intensity. Even better than that, Ushio makes a CYZ that’s higher output than the CXZ and longer life still at 400hrs. In either case of wattage, if your usual
intensity is at 75% or 50%, instead of fighting amber
shift, it’s better to put a lamp in it at that wattage - than see what value a
Parnel is. Might be archaic and heavy, but it’s a 10"
Fresnel and worth every pound. What does it take all of 5 to completely
cover a mainstage - and you already own them. Talking about easy to focus with a
wash and blend, a 10"
Fresnel is the king of the heap.
There are options for keeping the 10" Fresnels in service.
“The Parnells can use 575w Lamps or 750. We have a combination of the older
source four ellips and the newer 750s, plus pars and afew parnells. To make the lighting designers life more pleasant we just use a 575w lamp across all the instruments. Plus not to mention we do not what a student accidently putting a 750w lamp in an older
source four ellips.”
You have physical access to the
Parnel. Is there a difference that you can detect in beam between that and a 6"
Fresnel as noted on other forums? From what I understand, there is and it’s a deal killer non-replacement
fixture.
You realize that you can just buy new lamp caps than upgrade your 575w fixtures to 750w? Depending upon what lot number/age of 575w
fixture you have you might have to grinder away a few keyways, but otherwise it’s the same
fixture. That’s straight mojo from
ETC - when the 750 came out, we upgraded and did verify. Granted we sold off the older 575's since than but that’s normal for us in not having
line fixtures older than 3 years old at this
point. The “improved” lamp
base upgrade does work and there is no changes to
reflector or lenses that needs to be done. You might have to swap out yokes or
take off the handles, but other than a longer length at the cap, and 16ga instead of 18ga
wire, it’s the same cap and
fixture.
Otherwise, keeping a theater at 575w is nothing to grouse about, it’s putting out about an accurate 800w of
halogen light and that should be enough in most instances. Theater light levels can be less than rock. In any case, unless your tech people pull the spring pin off a 750w lamp, it’s impossible to install it into a 575w
fixture just as it’s impossible to install a 240v lamp in such a
fixture without pulling the pin mounted on the opposite side of the lamp. That’s a smacking upside the head offense in itself to yank a pin. Smack the first tech that yanks the pin as I have, and you don’t have to worry about future offenses - word gets around hopefully because it’s not easy to re-install them and the wattage of a lamp as printed does frequently wear off. The major difference in lamp bases aside from the new ones sucking is that it’s wired with 16ga instead of 18ga
wire. The 18ga
wire can handle a 750w load just fine for a short amount of time - yanked a pin myself in the field a time or two (on my rare show before we got rid of the last of the 575's), but it should not be done permanently.
Don’t replace the 10" Fresnels before you put the upgraded lamp or proper wattage lamps in them. In my opinion, it’s a
fixture similar to a 8"
Fresnel that is unique to the
stage and has not been improved upon for that purpose especially by anything on the market by
ETC. Kind of like replacing a
Lycian M2 with a
Altman 1000Q. Not the same class even if the same type. Consider wisely please, it's not just you that will live with your deciscions, it's future designers and tech people.