First grow - burnt seedlind?

Hello guys I'm on the 14th day of my seedling and just a few minutes ago I went to check on it looks a bit burnt.

It's a feminine white widow, was growing on 18-6 but I changed to 24-24 because of work on a 600w LED with around one palm(20 cm) and half distance from my seedling. Used only water for the first week and then a root stimulator for a few days, yesterday I started using A&B and rizhotonic together with the root stimulator.
I'm using still water but haven't checked the ph levels, I'm a complete beginner so if any one has any solutions, please tell me! Thanks in advance

This is a picture from yesterday morning, so green and beautiful...
This is today, getting crispier than my lips (aham, british weather)

Back off on that light a bit. 600 watts that close to a seedling?

hotrodharley said:

Back off on that light a bit. 600 watts that close to a seedling?

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How much more in inches or centimetres, thanks for the reply.

hotrodharley said:

Back off on that light a bit. 600 watts that close to a seedling?

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To my understanding. Correct me if I’m wrong. For a seedling there isn’t much light needed. I always keep mine 24 inches away Atleast with me 600w hps. Better to not burn the seedlings.

My seedlings preferred 34" away from my 600w LED. When they got bigger I moved to 24".

Capn-Crunch said:

My seedlings preferred 34" away from my 600w LED. When they got bigger I moved to 24".

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At first they were streching too much because the light was too far, now it's too close. So I'm guesing if I put it in the middle between were it was first and now it will be alright?

DiscoBaby said:

At first they were streching too much because the light was too far, now it's too close. So I'm guesing if I put it in the middle between were it was first and now it will be alright?

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They'll stop stretching as they near the light but best to lower just a few inches a day and wait