So now im wondering if my 1k bulb is too close. I have no burns or heat issues (even with a 1k, 400 hps and a 250mh in a 1.5x3.5x5 closet)

I read somewhere that the light should be @ least 10'' away from the plants and ive managed to get them within 4 inches. My plants is less than 2 weeks into flower and they seem to be close to others around a month........