I think I figured it...
Step 1: Each led are 2.24v that will be run on 0.700mA, so 2.24 X 0.700 = 1.568 watt
Step 2: I got 6 of them in the tent, so 1.568 X 6 = 9.408 watt
Step 3: Result X PPF for those leds PPF is 2.2, so 9.408 X 2.2 = 20,6976
Step 4: Result X time in sec lets say 1min (60), so...