Lights bleached my plants!?

What do you guys think of these cooltube reflectors? Do they create hotspots?

Why would they be manufactured for growing if they created hotspots?

Either way, nope.

I just made a cool tube a few days ago. I made the mistake of putting some plants too close. I can put the back of my hand against the glass but it still bleached out the closest leaves.

Just out of curiosity, how close is to close?

Puff.

Straightjacket said:

I just made a cool tube a few days ago. I made the mistake of putting some plants too close. I can put the back of my hand against the glass but it still bleached out the closest leaves.

Click to expand...

same thing, that's why i'm asking. two of my gals had their tops turn lime-green/yellowish...i thought it was a cal-mag deficiency at first but that wouldn't make sense (two others are fine and the last two feedings were plain water)... i'm thinking it was the cooltube creating hotspots and bleaching my plants from too much lumen intensity. my cooltube was like 3-4 inches off the top and my hand felt fine underneath so it can't be heat. now they are 6-7 inches off the tops and i'm hoping the new growth will be normal green.

too close to plants, not cooltubes fault. Just because your hand felt ok under it for 12 seconds doesn't mean your plants are ok under it for 16+ hours.