You’ll need white light (18 hours per day) as soon as you see those cotyledons, as well a temperature between 68- 77 degrees and humidity of approximately 60%. CFL lights are perfect for seedlings because they don’t produce a lot of heat. You can place the seedlings as close as 2 inches from the lights – giving them plenty of light. The web page explains the basics of PAR, PPFD and DLI for autoflowering cannabis plants, and how to optimize them for different phases of growth. It provides PAR/PPFD and DLI levels for autoflowering and feminized cannabis strains, as well as tips on how to measure them.
Therefore, they can be exposed to a constant light schedule of 18-24 hours of light per day throughout their life cycle. As little as 4 hours of darkness is enough or an autoflower to rest. Generally, providing 18-20 hours of light per day is sufficient, with 6-4 hours of darkness allowing for some energy conservation and plant rest.
When the time comes to plant, fill your container one-third full of your soil mix, then fill the rest with topsoil. Doing so will encourage your plant to grow downward into the soil, using nutrients as needed. This step prevents your plant from taking in too many nutrients at once.
24/7 Light Cycle: In this lighting timetable, cannabis receive constant light for 24 hours a day, 7 day a week. As autoflowers cannabis do not rely on specific light cycle to trigger flowering stage, many growers utilize this timetable to maximize growth and yield potential. . 201 62 40 359 228 112 275 288

how many hours of light do autoflowers need