White Widow - My First Grow

Had some serious signs of light stretch this week, and probably dropped the ball while trying to figure out the quantum board and being busy with xmas. Bought myself a lux meter and a kill-a-watt thing and although its not as accurate as a par meter it, it was obvious that I dialled it back too far. Turned the QB up to match 'good' lux readings on GWE but will closely monitor over the next few hours and days. Few hours later and tips are burning. Dialled back to 25KLux and 150w. QB @ 150w