I am flowering now with Mars hydro LED and a generic LED panel, I added some t-5 high output desert UVB lamps, 22 inches, two of them. I had them about 14 inches from plants during the 12 hour light on period. It started to fry them so I turned it off, flushed and added fresh water. They all recovered except 1. My question is do you use UVB during flowering to induce high crystal/trichome production. If so how far away from plant tops and how many hours in a day with lights on? Also I had several old 48 inch t-12 fluorescent tubes and put them about 6 inches away from sides of plants )replaced bulbs with 6,500 Kelvin. They started to get wilty, how far should they be from sides?