Grow Lights: Use Timers to Control Photoperiod

November 23, 2018

Simple lamp timers, or more sophisticated digital timers, can be used to turn your grow lamps on and off on a set lighting schedule. Timers make it easy for you to deliver the right duration of light, or photoperiod, to your plants.

PC: Sunlight Supply, Inc.

A quantitative short-day plant may bloom earlier or better if it has longer nights. A quantitative long-day plant may bloom earlier or better when given shorter nights. Both plants will eventually flower, however, even if the photoperiod is not ideal.

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