It is my understanding from others and also my personal observation that the 575
watt, 115 volt LL lamp (rated for 3050 K color temp) is by far the most popular lamp used in the Source 4.
Actually, they are about even. It changes from year to year as to which ones are more popular, but the
swing is only about 3-4% difference each time, and some years the Long Life versions are the slightly higher movers, and some years it's back to the High output, short life ones that are in higher demand. Personally, I've never understood why anyone would choose a long life lamp. Here's why- You can always dim a short life, high output lamp down and make it last longer, and turn it into a short-life lamp (in terms of life and light output). You can't however (unless you are Spinal Tap and have an 11 on your 1-10
power settings) run a long life lamp at greater than 100%
intensity, making it perform like a short-life lamp. So with the high output standard lamp, you get more options, and you basically get two lamps for the price of one. Run it at 95% on the board and it's now a long life lamp. Since designing is all about wanting the most options available to you, I'm very surprised we sell as many long-life lamps as we do.
To answer the earlier question about "Why would
ETC design it to match the long life
HPL and not the short life one that is brighter"-- think of it this way: The main benefit to
LED is primarily in the lifetime (maintenance/replacement) and energy savings. The people who are seeking that are the ones that are already using the Long Life versions of the lamp for those reasons. Giving them even further energy and maintenance savings just makes sense as you are giving them more of what they want. For those using the high output lamps, it's because to them the most important thing is punch (sheer output), and the brighter, higher
CCT that those lamps give them. There is probably a higher output, higher
CCT one in the works for those other folks.