well 4 weeks now and i did burn the tip with the light. i can't get a proper close up to see the singed tip but i know its there. here's a few pics to keep you all up to date.
something else i can notice is that your bud is very leafy. make sure you finish this bud fully to avoid the "Hay" smell and taste. a high bud to leaf ratio can be a bad thing. this bud will get huge. 2 foot of cola will not be out of the question.
Just watch very carefully when you start to see burn its too late. Feed well flush well and your buds will thank you by swelling to unreal size.
looking good, but if you paint the walls flat white it will bounce the lite around, as aposed to just above, more lite the better. i have some babys 4 days from packet, about the same as you, are you sterting a grow.j.?