Too much light?

[eastbaygordo]

I have some ladies under two 600W HPS lights about 18" from the tips. Some leaves showed burning so I raised the lights and added more ventilation.

One lady is losing her chlorophyll so I turned one lamp off and they seem happier.

The question is can you get too much light on a plant to cause it to lose it's vigor and color? Note, the leaves are reaching up for the light like they are happy.

[eastbaygordo]

I re-potted the problematic ladies into a bigger container. FYI that was yesterday.

[eastbaygordo]

Anyone have any thoughts?

How close to plants do you all place your HPS 600W lighting?

[the image reaper]

yup, believe it or not, you CAN give them too much light intensity ... I light-bleached the hell outta some of mine once ... plants survived OK, but looked pretty gnarly :wtf: ... as for distance, the old 'back-of-the-hand' method works well ... if the back of your hand is comfortable at the plant canopy, the plant should be fine ... :smokin: