PAR TEST READINGS - By Sanjay Joshi, Ph.D. (Feature Article: LED Lighting Tests: )
Orphek PR-156 UV LED Array
“The Orphek array PR-156 is one of the newer models that includes 4 UV LEDs, in addition to the blue and white LEDs.
A total of 60 LEDs running at around 2W each make up the complete array.
As tested the Orphek drew 110W of power.
As seen from the light distribution, there are large areas at 24″ and 36″ where the PPFD values exceed 200.
This clearly shows the impact of the optics and will allow these fixtures to be well suited for deeper tanks and mounting higher to get larger spread if desired.