looking for some input.

I am 21 days into flower real nice buds growing fat. using CFL
my q is has any one changed from CFL to led in the middle of flower?
want to change my light to led I just got.
any thoughts on this. what kind of shock will it give taking them up to higher lums and better grow waves.

I can't really see it shocking them that much if any. If you got some good LED's get them in there and give your plant a better life as soon as you can.

If it were me, I'd introduce it gradually. I'd start with an hour or so the first day, at pretty high up over the plants, then over the course of a week increase that exposure and gradually move the light down. At the end of 7-10 days I'd have it under the new light for the full 12 hours. Of course, you can only do this if you are around during lights on.

This may sound overly cautious, but If you shock those plants this far into flower they will never fully recover and you will lose a lot of yield.

Just out of curiosity how many watts of CFL are you running and what is your new LED light specifications?

I agree with dr blaze. Introduce them slowly. LEDs are directional lights. They'll likely be more beefy than the cfl you were using.

I have, and my buds stalled for a couple days, but then took right back off again at a faster rate.

That's pretty normal. Any change from mediocre light to halfway decent will cause a plant to slow down while it adjusts. It's like when you go from indoors to outdoors. They need to adjust to the change.

Nugachino said:

That's pretty normal. Any change from mediocre light to halfway decent will cause a plant to slow down while it adjusts. It's like when you go from indoors to outdoors. They need to adjust to the change.

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I'd like to think of my light as more than halfway decent lol.

I used to think my 90w blurple was halfway decent. It's fine for getting an ounce or two. If you can manage that. But, not if you're expecting more. That's kinda why I upgraded to the twin Vero29 kit. This one has the potential to produce at least 3 ounces. Maybe even 5 ounces if you're good enough. And If the plant under it has both the leg room and veg time to get there.

I'm talking cob led. I used blurple for a month before.

Show us your lights? I thought we were taking about COB-LEDs. Heres my two.

canadian1969 said:

Just out of curiosity how many watts of CFL are you running and what is your new LED light specifications?

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10 at 150w new setup is a 300w full spec. says it takes the place of a 250 w hps/mh.
new is uv&ir