Often receive question about the right choosing of grow light, so give some indication here to help someone who needs help.

Most people are not professional gardener, so the below indication is for them as the simplest and most effective way to choose the grow light. Not for someone who has specific requirement on the growing of plant.

Actually the 1st concern is the wavelength emitted by the light, why no light can be as good as the sun is that light only emits parts of wavelength in spectrum. Different light emits different wavelength in spectrum. see below graph: Activity of Plant VS Wavelength of Light

Attachment 290601

In above graph, there are 2 peak points of wavelength: 445nm and 660nm. If the light you choose doesn't emit or emit less wavelength of these 2 points, the light does little help on the growth of your plant.

So in short words, when you choose a light, you need ask spectrum from seller for the light. It is also the answer to the question why different light give different impact on the growth of your plant.
naturetong Reviewed by naturetong on . How to choose a right lamp for your plant? Often receive question about the right choosing of grow light, so give some indication here to help someone who needs help. Most people are not professional gardener, so the below indication is for them as the simplest and most effective way to choose the grow light. Not for someone who has specific requirement on the growing of plant. Actually the 1st concern is the wavelength emitted by the light, why no light can be as good as the sun is that light only emits parts of wavelength in Rating: 5