Ushio releases the SPH 575Watt/115volt lamp

[Lightingguy32]

The title basically states the new product, but my question is, can this lamp be used in the older style black Altman 360Qs that have reflectors made before ~1999 (pre-superreflector) and blue lenses? I am asking this becauase I am tired of the EHGs color temperature that does not match up with our newer inventory of ETC Source Four/ Source Four Jr fixtures. I am assuming this lamp is a safer bet than say the GLD or the HPR which will most definetly burn a hole in the older style reflector. According to the spec sheet, the lamp is a universal fit into any existing fixture using a G9.5 base type lamp and will fit in fixtures that use the GLC/GLA, FLK, or FEL. So this means the altman 360Q (newer models), the Star Par, the Strand SL and Shakespeare, newer colortran units, older colortran units that ran on FELs and several other fixtures that I don't know of. The lamp appears to be a cross in between the filaments of an EHG and an GLC/HPL filament geometry (they took the coiled coil design and flipped it onto a horizontal axis and then wound the coil diamter a little larger). The spec sheet is here : http://www.ushio.com/products/entertainment/h-sph.htm#

That is all for now. More information will be available later.

[Grog12]

I wants one so as I can play with it!

[Lightingguy32]

So do I, it looks promising, but I need to try one first.

[Pie4Weebl]

wow I think this topic takes the prize as the first lamp thread that has intersted me!

[Lightingguy32]

You think Ship has heard of the lamp yet?

[ship]

Holy crap in finishing up a long reply and going to the Ushio website and than exiting out of it and sub parts of the website, I just erased like two hours of post I was writing here when I hit the upper as opposed to lower X key one too many times.

Down to just printing up Usho's PDF of a GLC verses the SPH so I could measure and compare line drawings of the two in filament size... It was a concluding point....

[gafftapegreenia]

You could do it first in Word then copy-past.

Darn, and I really wanted to know your answer too.

[ship]

could do and that's what I normally would do but in this instance I did not.

Let me think about it a few days and it might while not not being as immediate be just as thought out... Let it be assured on the other hand that by the end of next week I will have this lamp on the other hand and do the testing. This lamp type is my pet field of study.

[gafftaper]

Sorry about that Ship. I know your main. My college off campus e-mail software has the habit of booting you off at random times but you don't know it until you hit send and then it's too late. Several times I've spent over an hour carefully wording a delicate message to an important person on campus only to have it vaporize when I click send.

I eagerly await the results of your experimentation with the new lamp.

[ship]

did some study (again...) here is the questions I had to my Ushio rep.

So on line I have been made aware of the new SPH 575/115v lamps. Informed on-line about a new lamp before me in having thought to have signed up for the Ushio news letter and also at times getting samples of new lamps to play test - knew about such a lamp. Really hate when either production manager or customer informs me of a lamp before I had a chance to study it. Any chance I can be verified to be at least in the loop for press releases I believe I already signed up for? :<

A few questions on my part came up about this and the Ushio GLC lamp which does not fit into my lamp specs chart of all lamps correctly next to the other GLC/FLK lamps in their catagory.

First on the Ushio GLC, it says that it is a 600w/115v lamp, than other notes I have say it is a 575w/115v lamp. Is this 600w a typo given all other ANSI GLC lamps on the market are 575w/115v and a different Ushio spec says it is allso 575w or is it correct that it is a 600w lamp and more the reason the Ushio lamp has much better luminous output than any other brand - or at least not by much in that balance of color temperature and luminous output but given the wattage boosting the output also? (Side question, does Ushio still sell the HX-800 and HX-801 or have they complied with in lamp the GLD/HX-754 and GLE/HX-755 in it being 750w/115v? Or altogether discontinued?)

Second, what is the filament size on the SPH lamp? (I note this specifically missing from the lamp specs and a very important measurement to declare in modern days just as important as cc-6 which tells filament support and double coil info but not filament size.) A Philips GLC lamp (c-13D filament lamp) for instance measures 9x7.5mm, and from what I can tell by way of Ushio's line drawing it is 14x6mm, +/- 1mm. Filament size is incredibly important in point source or at least square filament directed light efficiency over at times bulk/wide filament output especially for gobo projected patterns. Would the SPH be more similar if not worse than the GLC and HPR (below) in projecting patterns in a third generation Leko given what the expected filament size is, or is there something about the lamp which would make for better pattern projection than either of the above given comperable high output lamps?

What given a normal GLC lamp has a c-13D filament and the SPH lamp has a cc-6 filament would be the problems and or benefits of both types of filament - single verses double coil and or filament hangers in both instances? How does the cc rating of the SPH lamp lead to the advantage given a double coil but less filament hangers or coils in a smaller cubic area? (Perhaps bringing back Dr. Bulb from the olden days of Ushio can help further educate me into understanding these concepts - miss lamp education classes. More refined, is filament spacing a limitation in making brighter source lamps for directed light fixtures but not as much for wash fixtures, and this transverse (or trans axial) filament the reason why it is more efficient than a GLC and theoretically the same or better than a FLK in a wash type PAR fixture? Sort of understand how this trans axial filament in a wash type PAR or even fresnel fixture could be the case, but in advertising the transverse (trans axial) filament in being different Ushio in advertising should better have explained the principal of why.) What optically about moving the filament by 90 degrees makes this lamp more efficient in a PAR fixture?

I'm noting in the literature that while the filament is designed for beam uniformity and a smoother field, it is not as much recommended in advertising for Ellipsoidal Reflector Spotlights as opposed to PAR type beams of light. Is this a factor of the above filament size in noting it being larger or for other reasons such as in-line and spaced instead of stacked/staggered filament or even filament grid type closer filament cross sections?

What is it about the lamp which gives it 20% more output than GLC lamps (including Ushio's own) which given it's transverse filament makes it more efficient in both luminous output and color temperature than most if not all lamps? The details on the cut sheet don't explain why given a transverse filament it is giving a more intense light source, can I get further details on this? How at also 15 to 20% more output does it compare to the Osram HPR 575/115v lamp with its interior reflector (15 to 20% more output as advertised in output after the overall lamp specs) - this given a FLK base to the lamp design filament to the HPR is a problem for point source of light, but a internal reflector that completes the ellipse of the fixtures reflector does help and a even if FLK filament smaller than the SPH at 6.35x11.68mm filament how does the SPH compare to this lamp in both the Leko and PAR type fixture? I have seen/play tested that the HPR in in many ways out-punches a HPL lamped comperable ETC S-4 fixture in a Leko if not PAR type fixture (un-tested) and a GLC lamped Leko by way of at least flatter field, would the SPH lamp given it's expected more output be expected to out power both the HPR and HPL in the same way of flatter field and more punch or just that of the GLC in overall punch? IN a Leko, would the SPH also be proposed to be brighter than a HPL, out punch a GLC and HPR?

I'm also noting in comparing lamp specs that the color temperature, lamp life and luminous output of the SPH lamp are the exact same as that of the HPR (before internal reflector comes to play) and most including Ushio FLK lamps on the market which while more old school are for the most part similar in bulk light output still larger than GLC filament size. 8x18mm to 5.5x12.5mm dependant upon brand/year made for the FLK. Is the SPH more realistically comperable and similar if not larger given filament size to the FLK with its larger flament but more output than a GLC - this only a FLK with a transverse instead of axial filament? Kind of wondering in studying the lamp specs this compares to.

For the SPH 575/LL lamp, I note that while the long life GLA alternative has more luminous output as similar to the high output version, it has average lamp life almost half that of a GLA if not in some cases lower color temperature and most important only 800 hours of lamp life instead of the norm of 1,500 to 2,000 lamp hours. Is this a typo or correct in it being a middle ground between a long life 575w/115v lamp and a high output normally 300 hour lamp? Not that a middle ground balance between output and lamp life is a bad thing persay.

Finally, while normally mostly I buy the lamps for a ETC S-4 fixture based house, I do at times specify and stock for resale lamps for other applications. Would it be possible for me to play test this lamp against the lamps and fixtures above for my personal knowledge and education beyond the questions above?