It depends on what kind of grow you want.
If you want to give them a stretch ( i personaly dont like that) you can keep your lights at a higher distance,
If you want them to grow tricker, you keep them lower.
For HPS lamps the distance should be like this: 400WATT 40CM, 600WATT 60CM,
as for LEDS you can get them lower since LEDs doesnt have that much heat compaird to HPS.
In your case you got like 200WATT leds and they need like 30-40cm distance.
Goodluck :)