1st grow | indoor with Cube 200 growlamp

So one of the reasons I picked this strain is because it states that growing indoor it will reach a total size of between 40 and 60cm whilst outdoors it can reach from 60 to 90cm. Day 28, she is already 54cm tall and seems to be in good health! I have the Cube 200 lights literally 5cm from the tallest part of the plant and there is no heat or radiation of any kind that causes any damage or wilting to the plant whatsoever but... I have to move the light up twice a day otherwise the plant grows and touches the LEDs, when the plant touches the lense of the LEDs for any extended period of time the point of contact creates a very specific small localized burn of around 5mm in diamiter but the leaf does not die and actually maintains healthy!