I’m not aware of a “TW1"
fixture - who makes it, what type of lamp does it use? Just peeked my interest in a lamp/
fixture combination I don’t know about.
The VL-1000ERS
fixture uses a Phillips or Ushio (origionally)
OEM high output lamp that’s rated for 300hr at 100v, 115v, 220v, 230v, 240v, & 250v. There are no long life lamps for it out there at the moment, nor will there probably ever be given it’s attempting to be or emulate a moving light in output. One would think there should be a 120v lamp but I’m not aware of one. The 120v lamp would be sufficient for around 400hr at 115v I would think. Normally while dimmable, it’s not dimmed. Which lamp are you using the 100v or the 115v? If using the 100v,
switch to the 115v lamp, that would improve your lamp life on both
voltage spike problems and in general for applied
voltage over the rated
voltage of the lamp problems. If using the 115v lamp, check your
voltage feeding the
fixture and lower it to 115v or adjust the
fixture so it feeds the
fixture at 115v or perhaps even 112v to eek out some more lamp life. Should be able to adjust the maximum
voltage/
dimmer percentage on the
fixture.
Still for all intensive purposes - you pay for a highly refined high output lamp with a 11.5x11.5 to 10.5x14mm
filament with a few other
filament sizes in the mix dependant upon lamp and brand. This is a 29,000
Lumen lamp at 3,200̊K in
color temperature. (That’s much brighter than a FEL lamp and with a much smaller
filament - yet almost the same lamp life.) Sorry, I checked, there is no alternative lamps you can install in this
fixture with a longer lamp life short of jacking up the lamp
base by 9mm to compensate for a 230v FKJ lamp that has less output and even less expected lamp life. Or a 120v EGT lamp at 500hr in loosing a
bit of output, but only if Osram’s EGT lamp is really 500hr and not less like most of the rest of the brands. Otherwise the EGT is no better and all have a much larger
filament so any optics you planned to be using would be much worse. Just scrolled
thru 42 pages of tables in 8pt text on
bi-pin and
pre-focus lamps (we are talking about a lot of lamps here.) There is no other lamps on the market that are as good as this VL-1K lamp in it’s
voltage, wattage, output and lamp life. Short of adding a
buck boost transformer and going 230v, than completely changing the lamp
base and seat height to I believe a GX-16 and it’s seat height for a JS 100v-1000wB (if still available), there is no more powerful lamp out there, much less one with a smaller
filament size. Possible but the GX-16 lamp
base needs to be 12.5mm shorter in seat hight if it's going to work..
In other words, this VL-1K lamp is the most efficient 1Kw lamp on the market. There are some G-9.5 heat lamps from Osram that if still available would potentially work also and in fact be higher output and possibly have a small enough
filament and easily have a shorter seat height to
jack up to but something about "heat lamp" in the lamp's description to me says that if available, such a lamp would be a bad thing within the electronics filled moving light
fixture. Still if avalable, the Osram (no description) #54590 would be a really interesting 1Kw/120v, 2,000hr; 25,000
lumen lamp. You loose a
bit in luminous output but
gain a lot in lamp life. This given that "heat lamp" doesn't mean a
halogen lamp that's a wee
bit refined to produce more heat than light - that could be a wee problem inside a moving light
fixture as said. Have a look for the FEL-R Osram lamp while looking for in theory discontinued lamps that have real use. #54584 as a part number. Only 300hr. but if the moving light used an
ellipsoidal reflector (or in any
Altman 1000 type follow spot,) the 15 to 20% more output that internal
reflector does for output could potentially given this new VeriLite lamp a run for it's money by way of output but probably a larger
filament to some extent in lost efficiency in that pin prick way. This lamp was the fore runner to my highly toughted HPR lamps.
Still, in the end, perhaps that’s what you are paying for in a VL-1K lamp. If you must have a 1Kw
halogen lamp, this is the most efficient 1Kw
halogen lamp on the market. First time I did a search on such lamps in this way, I'm fairly certain at this
point that this is the most efficient lamp you can get and that there is no long life alternatives that would even with modification to the
fixture work as well. You get what you pay for.
HPL lamps are not nearly as efficient in luminous output but has comparatively just as compact a
filament - dependant upon the lamp. 9.5x6.8mm to 13.5x8.5mm with also lots of variation in
filament size. It’s smaller in
filament size for the most part because it’s a smaller wattage lamp. Sorry, no such thing as a 3,000hr lamp life
HPL lamp. 2,000hr on some of the more modern long life lamps but in going long life you loose close to 1/7th of the output. The
HPL lamp is designed for lots of situations where one might need 115v or 120v lamps say and can deal with a loss of output in exchange for a longer lamp life. The standard High Output
HPL lamp is rated for the same 300hr @ 115v as the 7002Y VL-1K lamp above.
So, the life difference is the same and one can also lean on the fact that your
HPL lamps are much more likely to live their life at varying levels of dimming, while the moving light
fixture will normally be at full output thus life less in life.
As for price on the lamps - I don’t pay that price for either lamp of course. I don’t have any notes on various standard retail price of the VL-1K lamp, but do know that even by our standard markup of the worst price I have a quote on, that would be a fairly bad price you are paying for the lamp. Perhaps shop around and that’s the extent I will go into for that or either lamp. Perhaps if buying the Phillips lamp, look into the Ushio lamp that frequently is cheaper in price.
Another option for you is if you cannot afford to lamp the
fixture, perhaps it’s time to sell it off for something you can afford to lamp. Something in the
MSD 250/2 range or MSD 200/2 range of lamp perhaps.
Pop a MSD 200/2 lamp into a
fixture rated for a MSD 200 lamp and you now not only have 1/6 more
color temperature but you now have a 3,000 hour lamp in the
fixture - good lamp same output.
Pop a MSA 300 or HSD 250w/UL/75 into a
fixture rated for a
MSD 250/2 lamp and you now have a lamp that’s rated for 6,000 hours in lamp life. In this case you will loose a
bit in
color temperature and luminous output but
gain 1.1/2 the lamp life normal to a
MSD 250/2. Lots one can do with a
MSD 250/2 type
fixture - one can go
color temperature ranging from 6,000̊K to 8,500̊K and lots of variation between. Can probably even color correct the 6,000̊K lamp down to the 3,200̊K
color temperature of a VL-1K
fixture in using some half minus color correcting
gel or filter. That or leave the
color temperature the same in that the
MSD 250/2 lamp types are only about as powerful as a 750w
HPL lamp. IN reality, somewhere between a long life and high output 750w
HPL lamp. Leave the
color temperature higher and while it won’t persay be putting out the same luminous output, it will appear to be as bright or brighter. What is it the
Mac 250E? Perhaps it would be suitable amongst many types of
fixture - different yes, but if lamp life is killing you perhaps a longer life lamp. Retail for these types of lamps should be somewhere in the $120 to $150.00 range but last much longer. At a minimum, even if only using a 2,000 hour lamp, it’s still going to have 7x the lamp life for say 1.5x the cost.
Some
fixture using a MSR 400 MSR 400HR or MSR 400SA lamp is the closest thing in output to that of a VL-1K lamp. (None would be used in the most state of the art fixtures but there are fixtures that use each of these lamp types. Some of these lamps especially the MSR 400HR is even dimmable. This given that dimming arc source lamps instead of lengthening the lamp life normally will shorten it.) The HSD 400 is rated for 2,000 hours and should be around the range of price of your VL-1K lamps (have not priced them out.) Dependant upon what data you have from Phillips, the MSR 400HR is either good for 750 or 1,000 hours. The MSR 400SA is for 750hr and all of these lamps should retail in about the range of a VL-1K lamp. Ok, more like the $150.00 range. Still, at least double the lamp life at 1.5x the cost.
The VL-1K
fixture is a nice
fixture - used to have a rack full of them at work. Not many designers are requesting them these days - always the newer and better
fixture out there especially these days the VL-5/VL-500D also
halogen. Sold off most of them if not all of them at this
point. That
fixture stands out in my memory specifically due to the
meat rack they hung from. Some
driver pulled out of the dock before he made sure his load was strapped in. The entire rack full of them took a
header off the rear end of the truck... - that was an expensive and rush repair.