Too much a light is a super squat plant with 5mm between nodes.Too strong a light almost like heat stress canoo taco leaves.Too close to light,light bleached buds.
so theres too much,too strong,too close ? but isnt them 3 things the same thing ? to me i dont asscociate greenness with light strengnth,power,intensitity or height from plant.removing optics could effect the light beam angles 0/90/120. i think the light is doing a fine job.
if that was my plant id probably not notice tips,stick it back in the cupboard and think everything was fine and dandy