Hey Growmie, if your trichomes are mostly milky with some turning brown, you're definitely at or near peak ripeness, so it's time to move into drying. Your cellar sounds like a better option than hanging over the grow lights, since light and heat can degrade the terps and cannabinoids. Ideally, you want a cool, dark space around 60 degrees Fahrenheit with 55 to 60 percent humidity and some gentle airflow, just not direct fans on the buds. Hanging them in the tent is fine too, as long as the lights are off and the temperature and humidity are controlled. Drying too fast from heat or light exposure can kill flavor, so slow and steady is the way to go.