Apogee 510 bounced between 186 and 210. ...so call it 200 where those two are right now. They will get a bit more output than this with the UV, violet and IR that the PAR meter cannot read (at all or very well), but only maybe 20-25% more. This will not be present in nearly all LEDs, so just factor that in if you are a LED user.
I measured the frag tank too where I have two new(er) ones at about 460. Those will be there for another week and then they will go under the 6500K (same frag tank) at about 750 PAR until they show 1/2 of shell growth. I do not put then in the tank until I know that they are off to a good start with some new growth. They really grow like crazy under the 6500K, but I am Ok with the growing slower so that I can enjoy them more... these will eventually outgrow my tank and I will sell them to get some smaller ones. It kinda breaks my heart when I have to sell them.