What's the word around here on SPH lamps as a replacement for FEL's? Our supplier recommended them to me for our Lekolite 10x23's.
Have not tried the SPH 575/115 lamp yet. Got them to
play test but have not had time yet. A quick warning went out to me in that lamp's advertising on the other
hand: "20% brighter in
Par & some" Lekos. That beats the estimate of the now discontinued Osram HPR lamp in being 15-20% brighter in Lekos due to its internal
reflector completing the ellipse of the
reflector, but on the other
hand look at the language Ushio uses. Brighter in
PAR and "Some" Lekos. That's a red flag for me before testing in if it says "Some" Lekos... what brand of
Leko is it brighter in?
Again have not tried it yet verses the GLC or GLA and what sock I still have in the HPR. This much less verses a GLD and GLE lamp. Could be great but on the other
hand in a simple way if you insert a
reflector so as to complete that black hole for light inside a
reflector assembly I can see a boost in efficiency in the lamp's output. If my lamp specification says on some Lekos it's going to be brighter... my qestion is not as much about how now 20% brighter (fill in the blank as to what in comparison in me not remembering), more simply about that word "Some" as stated in the specification.
While the luminous output of the SPH lamp is 1,000 lumens more than a GLC lammp on paper, I would still ask the vendor to provide both lamps in shoot out with color
meter to prove what the assurt given the specifications don't provide this info sufficiently to support their claim. In other words, make the sales person work for his or her profit margin.
Me, I don't know yet in not having tested such lamps. I do know that the Osram lamp now is supposted to be as good as the Philips GLC lamp in them having done an upgrade to it. GE/Thorn in specification seems low in what's published in output for the lamp.
Beyond all this, and way back on the forum back to HX-600 lamps as compared to FEL lamps, the HX-600 lamp at 575w/115v as compared to a FEL at 1Kw/120v is like a 800w lamp at a higher
color temperature as compared to a 1Kw lamp at a lower
color temperature.
Same though with better optics with a
HPL lamp. Not persay more light and indeed a FEL was a terrible in efficiency lamp, more about that higher
color temperature in making it seem brigher than the FEL.
For actual output one more would want to go with a 750w/115v lamp in getting close to output but with more refinened
filament so the light produced gets out of the
fixture in being brighter plus having that higher
color temperature. On the other
hand, if one can have less light and be satisfied, that's another
fixture per
dimmer you can install on it and go with the 575w lamps. Stages are too bright these days most often anyway. The FEL for instance is not designed for a
360Q, while it could be used in say a less efficient
fixture so as to pump out enough light.... not for a
360Q and to some extent while it in a
360Q
did pump out a
bit more light it also trashed more and more fixtures in doing so.
This heck, I got this 1.2Kw lamp that will function in a
360Q or other
fixture for sheer output.
Filament ain't very refined but one can use in in being powerful enough granny needs to wear shades when coming to the show.
So the above question of the SPH lamp... Go Ushio if it's better than a GLA in not having to go GLD in wattage, but on the other
hand I would
play test such a theory given the advertisement. Goal is more output and a higher
color temperature and efficiency so as to make it seem more intense yet, but still get say four fixtures per
dimmer. That's the goal in not having to exceed more and more in excess. Sure say a 750w lamp persay if competing with moving lights or 1Kw lamps in general but if on
stage hopefully the 575w lamp if not the long life version of it is sufficient.
Compared to what often the qestion in "percieved"
intensity.