Every light source has a different efficiency. For example, if you have10 square feet of grow space (around 1 square meter) then you will need at least 65000 lumens of light to get good growth. And depending on the light source that can mean a couple of dozen CFL bulbs, 200 to 300 watts of LED lights or one 400 watt HPS grow light. How many hours of light do Autoflowers need in flowering? The use of spare space in a flowering tent is an excellent opportunity for growers to experiment with autoflowering cannabis strains. Autoflowers tend to grow faster and produce larger yields when exposed to 18, 20 or 24 hours of daily light rather than the traditional 12/12 light cycle. You’ll save money on nutrients, but you’ll likely end up spending more on lighting. This fact doesn’t bother some growers, who treat their autoflowers to a permanent 24-hour light cycle. Other cultivators aim to spend as little as possible on lighting. Autoflowering strains require a bare minimum of 12 hours on and 12 hours off. How much light does an autoflower need during flowering? Usually, the 18/6 autoflower light schedule is one of the most popular methods for growing feminised cannabis seeds. It involves setting up a lighting system that provides 18 hours of daily light and 6 hours of darkness in a 24-hour cycle. 3. Autoflowering plants do not need darkness. As autoflowering plants are not dependent on changes in the light cycle to commence flowering, they can successfully be grown using a lighting cycle of anything from 16/8 to 24/0. .

how many hours of light do autoflowers need