Very good light. I bought the dimmer ballast as well so it can go from 250W to 660W in increments of 250W, 450, 600, 660. This grow stayed on 250W as it is only a 2ft x 2ft x 4ft tent.
It grew every step of the way to 70 days no hassle whatsoever. It says 600 watts used it was only on 250W for 18hrs per day from sprout (dimmable ballast). 2ftx2ftx4ft tall tent. 1lb 6oz .15. It withstood fluctuations in temperature and ph (ph very slightly between 5.9 and 6.5 ph). Temp varied wildly at times even up to 40C. A very hardy mix of some great strains.
+1 spanning
MAC Flurry - Grizzly Seeds
