X for Xenon would be a good guess but given long life verses standard life lamps what is the symbol for eXtended life? ✘life. I also should have been more specific in stating this is all the 575w
HPL lamp designation types out there and that I did not leave out any versions of it such as a Xenon verses
halogen.
Perhaps it's more of a difficult question than I thought. The tech people that get lamps from me learned the difference after some time with me tormenting them perhaps and I assumed it was a normal thing to know. Also I started giving out
ETC lamps when that's what they asked for. That's the 150w DC/Bayonet lamp most used in a 3"
Fresnel "Inkie"
fixture. It definately won't work in a
ETC fixture. Anyway, the question might be useful to learn from still. Bear with me for more info to keep in the back of your head.
X = Indicates some arbitrary
deviation from the normal product. - GE Catalog
Given the choice in most instances between normal life and extended life lamps, it's most used to designate long life lamps when LL is not used. That is except for in the American DJ catalog where LL does not designate long life, it designates Lamp Light their
house brand.
There is no specific lamp code difference for a Xenon verses
halogen lamp, plus no xenon
HPL lamps on the market yet to the best of my knowledge. Might be some xenon fillers in with the
halogen/nitrogen but not enough to seriously boost it's output above what other companies mix it with. The cost of Xenon as a gas is cost prohivitive I expect for the most part at this
point so far. Wait a few more years with the
dichroic filters and internal reflectors. Ushio just came out with a
ceramic instead of aluminum
heat sink for their
HPL lamps. Just got 20 of them today. Not sure how well it will work in the fixtures, might
break in some of the tighter brackets, especially when a screw
driver or pry bar is needed to insert or remove them - we will see.
The Osram GLC is a
halogen/
xenon lamp. Had
ETC recognized the GLC/GLA
line with Philips removable
heat sink for use with the fixtures, than Osram will have probably also introduced a removable
heat sink for their GLC lamps and than had a
Xenon lamp used with
ETC fixtures. Otherwise there is no notes on S-4 fixtures having xenon lamps. It's of interest also that Osram while their high output GLC lamp is
halogen/xenon, the GLA long life version of the same lamp is not. Might be something to the less output or
color temperature of the long life lamp not working well yet with xenon fillers - yet.
The HP600X by Osram was also a
halogen Xenon mix lamp but it's "X" designation was for long life not Xenon. X frequently is a substitute for LL in lamp code - especially for HX/HP lamp code such as a HX-600. The HX designation is kind of a Lif code and a Pre
ANSI designation, but more of a experimental lamp designation and pre-ANSI code that GE/Thorn uses and others adopt. As opposed to Philips and Osram that uses their own pre-ANSI systems such as #6880P or #71-2529 or #64637.
In Japan code the JC/JCD type lamp code as noted in brackets above, the code of JCX lamp is noting a
Xenon lamp such as the JCX 12v-5w as it differs from the JC12v-5w/cc-8 or JC12v-5w/c-2R. This confusing code as opposed to
ANSI and the Euro Lif codes is probably the only lamp code that designates a
Xenon lamp.
There are three main lamp code standards.
ANSI (American National Standards Institute) as the main one, Lif code as the Euro one and one that's more
broad in what it covers than
ANSI such as a CP-92 or P2/25 lamp, and the J-Code or Japan code that's even more
broad and confusing yet.
A FCS/XE lamp is a
Xenon lamp also much similar to a normal
ANSI coded FCS lamp but with a Xenon filler. Note that the FCS is directly followed by it's modifier /XE just as the HP600 is followed by X but since X normally stands for extended life a XE now is used. (My assumption that in seeing an X, it would be assumed that it's a more common usage of the letter in being long life/eXtended life not xenon.)
To confuse you more yet,
Osram makes a EVC lamp that's Xenon, they
call it the EVC/FGX Instead of designating the lamp in description as front glass - FG, Xenon - X, the FGX is actually a
ANSI code for the lamp.
ANSI lamps have three letters to them. FG is also a modifier for a MR lamp with front glass. Usually they list front glass MR lamps with just one letter a G but sometimes it's listed as
FTC(FG) depending upon the brand. Such as a FTD/G. CG is also used, standing for
cover glass as opposed to front glass.
Point is since a EVC lamp is not a open faced
reflector type MR-16, it does not have a
cover on it and hopefully it will never have a G, FG or CG following it's code. Were a EVC lamp a MR-16 variant, it would get a new
ANSI designation for it such as a ELC/3H or ELC-3/X or ELC/3. The /3 designates a aberation from the standard 50 hour lamp to in this case a similar to the EVC in 300 hour. Pop a EVC into a ELC
reflector any you would have a better lamp in fact. Instead the EVC/FGX is a double
ANSI coded lamp similar to EHC/EHB with one lamp the origional designation of it and the other the newer designation.
For the most part,
Halogen/Xenon lamps don't have a X designator in it's code unless it's a lamp in addition to a non-Xenon lamp also produced. A Philips EVD/XHP lamp will be a Xenon high
power lamp as opposed to their normal EVD lamp probably since otherwise Philips will have just noted it as a EVD/HP. The X in this case is prominant but confusing because normally it would designate long life and only be two or other than three letters so as not to confuse it with a second
ANSI code. The HP being the only hint that it is high
power and higher than normal
power/output lamps usually are not extended life. That and
ANSI designations have not gotten up to the X letter code yet. Still in the H designations given
HPL is an actual
ANSI designation. Otherwise, GVH it would seem is the last number used that I'm aware of.
Were a
HPL lamp specially designated as Xenon, it would probably read if any designation of it were made:
HPL/XE 575w/115v/C or
HPL/XE 575w/115v/X.
Note that
HPL lamps while
ANSI designated as such have become complex in that they range in
voltage and wattage unlike other
ANSI lamps such as a BTL or BTN which give a new code for a differing wattage or
voltage. The idea of an
ANSI code to a lamp is to make an industry wide uniformity to certain lamps for all to be within tolerances the same lamp.
HPL does not follow this rule so I guess it has become complex, or
HPL is not an actual
ANSI designation. I have not paid money to join the institute and so have no access to the code
ANSI other than what's published in lamp catalogs.
Anyway, is that help in reading what the X verses C means? C you can probably guess probably designates high output in J-Code.
Officially it's otherwise:
C =
Base With Cable “XBO700w/HSC.OFR” (Xenon Short Arc, 700w, Horz.
C = Flattened Egg Shape or Christmas Tree Shaped
Bulb. (
Cone Shape) (Arbitrary Designation for lamp shape.)
C = Coiled
Wire Filament, this effectively shortens the width of the
filament to allow a smaller focal center and smaller
bulb. In Gas Filled filaments, reduced thermal losses and increases efficiency. The number following the coil identification letters denotes the arrangement of the filaments on the supports. A number before the letter denotes a double or triple
filament.
Wire wound into a
Helical Coil, or is Deeply Fluted