850nm 50 to 150 LED DIY NIR board

Hello, I’m looking to purchase a few of the 850nm 25 LED packs to build a NIR therapy board. My apologies if my questions are silly but I’m looking to build this myself without any expert knowledge. Might pass this on to an electrician but I want to make sure I buy the right stuff.

  1. Are your 850nm LEDs electrostatic-coated?
  2. Is there a power meter I can buy to calculate a rough table of what combinations lead to what power densities at what distance and or if the LED’s need a lense?
  3. How do I connect all the LED’s in rows eg. 2 grids 50 LED’s or 5 grids of 150 LED’s?
    Any advise is appreciated :slight_smile: