New Grower why my cannabis are burn??? Emergency response!!!Help

[crazygirl]

hello Guys,

I need help!!! my cannabis are burn out!! i use led lights 90w ufo, 60pcs uv and 10pcs blue ,20pcs red 660nm.,who can tell me why????
thanks!!!!

 

[iLuvIndica]

hey how far away are you keeping your leds from the tops of your plants ? Give us some more varibles of your grow are you using any fans ? did you feed them nutes recently ? What soil ? How old are they etc.... If your lights are closer than a foot try moving them away. Ive seen some leds require you to keep them 18 inches away or more. Espically if you dont want super tight internode spacing.

 

[Red eyed c]

60 pieces of uv sounds a lot to me,iv never seen an LED with that many uv ( my blackstar has 1 or 2 out of 90 leds )..maybe there's the prob.id be wary of exposing my skin and eyes under so much uv