Light help with par meter

[TheNewGuyHere]

Hello!

I used a par meter to figure out a light I bought used. The light is a kessil a360w. It is mounted 13 inches from the water. I was a bit surprised at the par ratings… the light was on full blast and on full blue at time of reading. The tank mostly has zoa frags. Should I just run it on full blast with these par (watt /m) values?

Thanks for all the help!

 

[Jekyl]

I run the same lights and keep them at 7 1/2" above the water. Any higher and you end up with a ton of spill over.

 

[TheNewGuyHere]

Thank you! Moving the light down gave more expected par values. Here is the updated view at 7.5 inches

 

[Jekyl]

Very glad I could help!