question, I've got 2 x 600 W, HPS, and a couple LEDs. I know my Lux meter is no good for LED, but my readings are low, like 25-35k at 20" or so, and I've got to get it to 6-8" to get in the 45-55k range, but when I do this, the plants show signs of heat/light stress, no colouring, just bent...