bille I am testing if autos will respond to 18 hours of intense light and 6 hours of red low level light. Trying to recreate the midnight sun. So far they have responded very well. They pre flowered one week earlier than the last group I ran with a regular light schedule. The inner branches are more compact and healthy and they have a wonderful smell of pepper. In two days they exploded with bud tops. I will be screwing in the 600 watt 7200k blue blue MH bulb during the last two weeks also to gauge if it will increase my resin levels.