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MarianPazdziochstarted grow question 4y ago
Hi, today I received the HPS 250 W lamp. First question. How can I lower the temperature in the box? Right now I have 34°C with the box open. When I close it, it goes up. Second question, how often should I water with this lamp? My plants are a week old. Pot size is 10L.
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Plant. Other
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Mr_Incognitoanswered grow question 4y ago
If you have a possibility to throw out the hot air right outside, I mean the building itself, that could help with heat build up. Extracting fan must be high capacity. Extracting air from the tent into the room won’t help at all. Even with windows open. The most effective cooling is surely air conditioner. That’s expensive though.
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Robertsanswered grow question 4y ago
You will need a cooling system for that lamp with a extraction fan. HPS are not best temp wise in small spaces in my opinion.
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