@FrontRowAG_BrianG,
Hi thanks for dropping by.
Im using Lazerlite 720 W LED. It's very cheap around 300 Euros. Im running it on Lumatek HPS ballast. On 660w it draws around 710 w from the socket.
I think it's combination of light and high temp. Unfortunately this time of year temps in tent get to 30 degrees C. I hope they will finish fine.
Cheers