Too much light?? Please help

Currently got a 1.2x1.2m tent. I am three weeks into flower using a 600W hps however running the digital ballast at 660W. I havebuilt the screen the whole size of the tent and its safe to say i have bud points from front to back to every corner. However the front side and bits across the canopy dont seem to be getting enough light / penetration. I was thinking about adding a decent led of my mates to reach the darker patches of the tent. However am just worried it will be too much light for them? Has anyone got any say or advice on this please? Not wanting to chop any fan leaves above the canopy. It might-be okay, ive just put a lot of effort into this grow and just dont want to fall short on something thats adjustable. Cheers hope someone has some insight!! If you look closely round the sides and fromt you can see the darker spots

Go for it. Add the led

No... All we can see is the HPS glow

But I ran a 600w in my 4x4 tent, worked great

Cool! Cheers for the replies, probably just over thinking it. Only two plants in there so i wouldve thought the hps is sufficient. I’ll get the LED set up and post up the results in a week.

I have decided to hold off on the extra light. On the basis of keeping heat down as its mid summer here and just minimising the risk of stress. I will take the ripe buds off when time is due and let the ones that didnt get so much light have a little longer. Anyway this is me 23 days from the day i went 12/12. First scrogg, a little uneven. Let me know what you think