Like the sun’s cycle, it is unnecessary to run grow lights around the clock. A good general rule of thumb to remember, if your plant is flowering or a vegetable it needs 12 to 16 hours of light in a day and 8 hours of darkness to rest. …
Moreover, what time should I turn my grow lights on?
To be effective, grow lights really need to be on for at least 8-10 hours a day. This can vary up to 16 hours, depending on the conditions. That’s why LED grow lights are so popular – when they have to be left on all day, it’s best to use an energy efficient type! Always position a grow light above the plant.
Likewise, people ask, can I turn on grow lights at night?
A: In general, you should not leave grow lights on 24/7. Plants need a light-dark cycle to develop properly. It’s believed that they truly do “rest” during periods of darkness, and probably use this time to move nutrients into their extremities while taking a break from growing.
Can I leave my grow light on overnight?
While leaving growing lights on for a single night is unlikely to have long-term effects on your plants, constantly leaving the lights on can stunt their growth, prevent flowering, cause wilting and burn damage, and may kill the plants.
How long should seedlings be under a grow light?
Seedlings need 14-16 hours of light every single day, without fail. Don’t leave them on for 24 hours a day though. Like us, they need to rest at night. So plan to keep your artificial lights on for 14-16 hours during the daytime, and turn them off overnight.
How far should LED grow lights be from plants?
How many hours a day should seedlings be under a grow light?
