Leaf burn & Questions

IGLM GDP. Indoor with KINGLED 1200W lamp. Lamp is 40" above plants. Moved circulating fan 12’ away. Plants are 10 weeks into bloom cycle. I am getting leaf burn, curling & cannot figure why. Room is constant 76 degrees. Seems buds should be larger at this point. Still lot’s of white pistils. Allot of crystals on leaves around buds. What am I doing wrong?

You said you’re 10 weeks into flower? Or just 10 weeks since the you planted/sprouted?

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What kind of light do you have?

Says kingLED1200w

10 weeks into flower.

That is a lot of area for a 165 watt light to cover, those amazon lights are pretty deceiving with names of lights. I have a Bloom Plus BP 2500, it is a 250 watt light. When I bought it I was planning on using it in a 2x3 area.

Skippy it is a 1200W lamp.

I just saw a kingled 1200w lamp on amazon that says it uses 165 watts. A Blurple light is what is pictured there. I am no expert on anything, but I think you are using 165 watts of light and probably have a little nutrient burn on your leaves. It is possible I am mistaken. Lots of lights on Amazon called one thing but aren’t actually what they appear. If you are actually giving those girls 1200 watts I don’t know what is wrong.


I think 1200w is a model number. It’s 235W.

  • 10W Double Chips: brighter more efficient than traditional 3W and 5W LEDs,scientifically engineered to keep the balance of the PAR/Lumen Output and Coverage.Long lifespan.
  • Energy saving: just consumes about 235w power,the electricity is 0.235kW·h per hour.Saving more money than HPS/MH lamp; Worldwide Voltage:85v-265v,plug and play.
  • Full spectrum: the light include red,blue,yellow,white,IR and UV which is similar to the sunlight,ideal for all kinds of indoor plants veg and flower at all growth stages.
  • Efficient cooling system: some holes on the led board(thickened, ours:3.0mm, others:1.6mm) and the glass form convection with the fans,efficient heat dissipation.And every led has a resistance to keep them work separately.
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Oh and the above is a King Plus 1220 W

As for the light @Jim53, look on the sticker on the light. How many amps does it say? You simply multiply amps by 120 (voltage of most u.s. outlets) and that’ll tell you how many watts are actually being used. Not a pro but for ten weeks into flower I would think the whole plant should be autumn colors because you should be very close to harvest. Sorry im not much help haha good luck

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Unfortunately @Jim53 with these lights there’s not much truth in advertising…