ATI Sunpower Reflector Beam Angle

[Midrats]

Does anyone know the beam angle of an individual ATI Sunpower reflector, as in at what angle does the light leave, what's the spread? I know the reflectors in the Powermodule are different and more focused.

 

[oreo54]

I' ve been trying to find t5 reflector effective angles myself
There are some guesses one can make from the spill on the wall and height in the above video.

 

[Midrats]

Thanks, I'll check it out. It's crazy to me that there's nothing one can find, especially with all the vast T5 threads out there. @ATI North America

 

[oreo54]

Thanks, I'll check it out. It's crazy to me that there's nothing one can find, especially with all the vast T5 threads out there. @ATI North America

Since this test is in free air it will be easy to roughly figure the beam spread.
This will be cumulative effective "beam" not ind. reflectors.
Here goes.. no idea of the validity here.
Keep in mind this is in air and tank reflections/refractions will change the numbers

Quantitative Comparison of Lighting Technologies: Metal Halide, T5 Fluorescent and LED

Based on this quantitative data, is its quite obvious that the LEDs have come of age in providing a viable solution to lighting reef aquaria.

reefs.com

Ignore the 12" thing on the image.
Green square is approx the size of a 6x36" ATI t5ho

24" up 24" spread to FWHM (it's what they use) of 120 (240/2)
53.13 degrees.
I would have guessed somewhere around 90 degrees ..50-60 degrees seems more likely..

Anyways at least the spread pattern is there..