What’s the large type used for a
scoop? Depends upon the
scoop but normally a DKZ. Nice lamp, back a few years ago, they still had silica sand in them to swirl away the blackening of the
filament. Sort of fragile lamp. I’m prone to the Thorn DKZ/DSE lamp these days - a
bit smaller in size - but again it depends upon which specific
scoop you have.
HPL (non-ANSI but sort of one) BTW not known to be but possibly also
ANSI (American National Standards Institute) lamp. It’s an industry standard with lots of leeway in what lamp is used but in general that all lamps of a type will for the most part if following the standard be the same or similar in type and output. This ass opposed to non-standard lams that can
call themselves what ever they want and not be standard. Ballasts to arc source fixtures also use the
ANSI standard - but not the lamps. Thus you get crap like the MSI 1200w/S from Phillips seeming like the
HMI 1200w/S from Osram but in actuality the MSR 1200 DE/SA being the lamp intended to emulate the Osram better quality lamp.
Or was that the UMI 1200/HB, CSR 1200s/DE, DI-12/s. With time Radium, Wolfram and Eiko will also have similar arc source
Mac 2K lamps, all with different lamp codes also. For especially a moving light lamp, there is no
ANSI code - thus MSR means nothing more than Phillips lamp speak for a type of their lamps and nobody will other than at best simulate this three letter code of lamp.
Or even the HTI 1200w/D7/60 from even Osram that’s the same basic lamp - different lamp code
Midget at least Midget II
fixture uses the same lamp for all intensive purposes as a
Altman 1000
fixture - just using more advanced lamps - all similar to a
Leko lamp in being the same basic class of lamp. All
incandescent/
halogen lamps instead of arc lamps. The 750w/115v Phillips #6981P lamp is a darned good lamp - same lamp as developed for and used on the
High End Systems Color Command
fixture.
HPL lamps are similar to this type of lamp except they have permanently mounted
heat sink to the lamp
base as opposed to using the lamp
base for a
heat sink. Way back when in these two classes of lamp being all the same except for the
heat sink, Phillips in the GLA/GLC
line had removable heat sinks to make what worked in a say
Altman fixture, also work in a S-4
fixture.
ETC with their licence to do
HPL lamps probably didn’t like this and Phillips bought the licence to make
HPL lamps later. Should you remove the
heat sink from a
HPL lamp and install a locking slot, it will work in this
lycian midget, just as a normal Midget lamp will work in a S-4
fixture, it just won’t have the
heat sink to retain it in the
fixture or help cool it. Same basic lamp, one has a
heat sink, one does not.
“Why do the lamps for S4 PARs need the pokey stick thingy, and don't just use the regular metal clampy thingies?”
Indeed and as soon as I know what you are talking about...
If assuming by BTW you mean BTN, than also are recognizing the surface are of the
filament grid between the lamp as one being smaller than another - you are recognizing something important about lamps.
First, nope. It’s three parts.
Brightness persay is
color temperature. A lamp that’s more blue/white will look brighter than a dim candle - even if it’s less in actual light output. Say in going to an extreme, a single blue Christmas light will look brighter than that of a candle, yet the candle is actally putting out more light one can see by.
Intensity than is the key. Or Luminous output and or
candlepower - how many candles of light upon a one square
foot surface one
foot away...
In lumious
intensity, the 750w/115v
HPL has the 750w/120v BTN
beat for
intensity. Remember that the BTN as a
halogen lamp was a second generation type lamp improvement upon the
incandescent DDY lamp. (Amongst others.) It’s “
halogen effect” allowed a more efficient light output lamp even in
color temperature than that of the
incandescent version, but it’s early 1970's technology. The
HPL lamp is third generation technology in both lowering the
voltage thus rising the output by way of for each percentage of
voltage, the output rises 3.6% and it now being a 115v lamp instead of 120v lamp, it sees a difference in output, also in a more efficient engineered lamp, it can burn with more output but for 200 hours less or even less than this in expected lamp life. In providing more output by way of about 4,400 lumens in output more on the
HPL lamp, you give up about 200 hours of expected lamp life. This all at their respective voltages which changes things even more - the BTN at 120v thus often more than 500hours of lamp life but also less luminous output given it mostly won’t see a full 120v
voltage applied to it. The
HPL lamp on the other
hand is rated for 300 hours of life at 115v and often it will be operating slightly over it’s rated
voltage thus the lamp life goes down but also the luminous output goes up. This also in adding 0.5%
color temperature difference in percentage change by way of applied
voltage.
You now have two lamps rated for the same wattage and different voltages that beyond lamp efficiency have advantages and disadvantages in being very different lamps.
Add to this a third factor in lamps and that’s the
filament or arc gap. The more pinprick the source of light, the more efficient the lamp especially within the billiards table that it is that is a
fixture. The smaller the
filament, the more efficiently the
reflector and lenses can
send out light collected and focused or reflected into the desired beam of light as opposed to being caught as stray light off the
gate, baffles or in just having say a field verses
beam angle to at least a
Leko’s light output. The larger the
filament and a BTN has a large
filament, the more of it’s light especially towards the edges of the
filament, will never be efficient light to light the
stage with. It just hits the
reflector and gets absorbed by the
fixture in being at the wrong angle. The smaller the
filament - be it stacked or a type of smaller
filament grid, the more compact the source of light and the more light can accurately get out of the
fixture and focused upon your target.
Stage three in lamp development was when lamps started to get smaller filaments thus were able to take better advantage of refined optics for more light output.
BI-Plane is a stacked in three dimension
filament, “coiled coil” refers to the
filament wire itself having two wires taking up the space of one. Different terms and meanings and neither as per saying size of
filament or fully enplaning what is going on.
On
base up/down that’s a question of once a
filament - no matter if in
halogen or
incandescent lamp, once that
filament becomes white hot, it tends to sag. These filaments require
filament hangers to support them so as not to sag. Such a hanger often will well support and keep the small shape
in one direction but not another. If not supporting the
filament, it tends to follow gravity in falling out of place and even potentially melting it’s way
thru the glass of the lamp, or at least no longer being held tight in the lamp’s center. Most modern lamps with their smaller
halogen lamps can have smaller filaments or at least in general the lamp is rated for supporting an even hotter
filament yet thus more rugged in burn position. Most but not all
halogen lamps are universal burn but some especially the
RSC types still have a +/- burn
rating due to the length of
filament exposed.
HID’s at times can be dimmed but remember that discharge lamps are not resistance to a
filament lamps - they instead provide an arc of light which requires a certain amount of
voltage applied to it so as to maintain the arc of light. Remove too much of that
voltage supplying the amperage and you have problems in many but not nearly all cases. Very much depends upon the lamp. Ballasts supply that
voltage and also supply a amperage based upon that
voltage needed by the lamp to
strike an arc of light between the two electrodes. No
ballast for quick burst of energy and all you really have is a
transformer in supplying a specified
voltage. Such won’t help unless you have a sufficient amperage of that
voltage applied to so the energy can jump the arc gap.
