How far I can hang my TSW2000 in veg to improve the temperature? It's hot and not sure how far to hang it and how much to set the dimmer, now it's 65cm away and 75% potency but in my other questions people say that my plants needs more light
I have the TSW2000 set to 46cm and 75% power for my current grow. That corresponds to a DLI value of 40 or PPFD of ~630. Measured with the Photon app. The temperature is at 26.5°.
Looking at the picture here and judging by the stems of your plants, they get really long when they are too far away from the light. The long stems are indicators that your light is too far away and you need to bring it closer for maximum efficiency. To bring down the temperature you may want to look in to more fans for air circulation. Also make sure that your exhaust air is going outside of the room that you were growing in. This helps play the role in optimal environment conditions.