Light intensity LED grow lights

In Midsummer. Near midday clear. The light intensity is 1000 Wm-2 due to approximately 45% of the sun in the 400nm nm 700 was used for the synthesis of light. Plants can take approximately 450 micromol Wm-2, or about 2000 m 2 s-1 emission similar. Or higher can be achieved using artificial light sources such as HPS, MH, led grow lights  but need capital for electric lamps.

If we consider the plant. Leaves in each line at a right angle to the rays was about 1/3 of full sunlight (about 150 Wm-2) for artificial light. These values ??are typical for Sun adapted species such as greenhouse vegetables. Indoor fine species. Including plants must reduce emissions by LED grow lights may help to understand the words. Growth of most crops can only third full sun. Many reasons, including, but is not.

? Not all plants are composed of a single exposure to direct sunlight at a right angle to the surface of them together in the shade of the leaves are often inclined to reduce the number of light beams into space.

? Shooting in shade leaves overlap. And absorption of light before they reach the bottom (Ps. intensity LED grow lights emit enough for a double).

? The difference in light absorption pigment content in various tissues, causing variations in the absorption of light.

Leaf canopies hence very high emissions to more than one compensation point. These considerations help us to understand the relationship established in greenhouse vegetable production “1% rule”: for every 1% increase of light intensity to plant a 1% increase in productivity.