Grow Lights: What are Lumens?

March 24, 2019

The measurement of lumens tells you how much light you can expect to see from a given lamp, or the total amount of light output. Lumens per watt (LPW) is used to measure the efficiency of a lamp, or how much electricity a lamp converts into light versus heat.

Most grow lamps will provide you with a Lumens output, a measure of visual brightness.
PC: Leslie F. Halleck

Remember, plants and people see and use light differently. A light source may seem bright to your eye, but that doesn’t mean it’s better for plants.

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