I remember the first
LED cyc light in a demo at work.... probably like over 15 or more years ago. Minds' eye it had the
intensity of a 300w lamped 6-cell
cyc light in output, and was not sufficient for our 1Kw needs. In general back than and up until recently the
CRI has been a huge problem.
CRI is not the correct measurement for
LED sources but is still the norm. The accurate
CRI like standard I forget the name of is not much offered or used but would be good to research in the how its' different and more accurate concept.
Interesting concept for the
prism above, fascinating.
In some cases these days I cannot match the light output of a
LED source verses T-5
fluorescent or
incandescent, but in most
fixture design cases I
base my
fixture design off of luminous output of a
filament lamp and
RGB+ or
color temperature desired and luminous output as often a new design trade off. "This is the luminous output similar to a 15
Watt lamp"
in one case recently for something someone else thought a source best without running the math. I try to
gauge with the people requesting a product a
incandescent lamp concept of output because that's what everyone bases their minds' eye concept of output from. Given
LED fixture use, I fear just as most now can't imagine what a FFN lamp will look like at 20'
throw, and most won't know a 6x9
lens train at similar
throw... the future is going to be interesting for the next generation of designers and tech people to figure out.
A definite advantage of going
LED is the wasted heat from the
filament having a huge factor on how you design what it's put into for that heat compensation. And again being able to dial in the
color temperature or saving having to add a
scroller to color the light. Also, the overall wattage of a
system has gone way down. 20' square display booth I'm working on, will be probably given three 20 amp circuits, but can probably be one given it's mostly
LED in use.
Hate
LED's but becoming the mainstay's of what I fabricate for a living. Even fabricating a
LED source for kitchen counter light given the T-2
fluorescent lamps I was using are no longer sold.