3. Descriptions of LED T8 Grow Tube   

1,18W led grow tube light can replace 40W fluorescent lamps, saving 80% of energy.
2,Uses 2835 SMD LED chips. We suggest that the proportion is 7:1 (Red: Blue). red yellow blue orange white mixed light available to the plants...
3, ideal for a variety of stages of plant growth, can work well with indoor garden, good soil or water cultured plant breeding work.
4, lights illuminated the area and height will change accordingly depending on the plants and the environment, and the technical parameters will change.
5, Products All materials meet the environmental requirements of the ring, mercury and other harmful heavy metals.

4. Application of  LED T8 Grow Tube

5,LED plant growth light knowledge

Spectral range effects on plant physiology:

280 ~ 315nm ––> this Wavelengths of light UV light , directly stifle animals and plants even fungus grow up.

315 ~ 400nm ––> this Wavelengths of light far UV light , even won`t hurt plants ,but no direct effect on plant growth, chlorophyll absorbs less, photoperiod effect, stop root elongation.

400 ~ 520nm(blue)–> this Wavelengths of light growth plants root and stalk directly , the biggest influence on root plant photosynthesis

520 ~ 610nm(green)–>Green plant repulsive push, green pigment absorption rate is not high

610 ~ 720nm(red)–> Plant chlorophyll absorption rate is not high, the wavelength for photosynthesis and plant growth rate have a significant impact.

720 ~ 1000nm ––> Infrared wavelength for plant absorption rate is low, can be directly stimulate the cells to extend, affects flowering and seed germination.

>1000nm ––> Is close to a laser light wavelength has been converted into heat.

From the above plants and spectral data, the effects of each wavelength of light on plant photosynthesis is different, plants need light for photosynthesis, 400 ~ 520 nm light (blue), and 610 ~ 720 nm (red) for the largest contribution to the photosynthesis, and 520 ~ 610 nm (green) light, for plants to exercise the effect of the growth rate is very low.

According to the above principles plant only for 400 ~ 520 nm (blue) and 610 ~ 720 nm (red), the spectrum have direct help growth effect, so the academic concept of plant lights are made combination of red, blue, blue, red all three forms, to provide two wavelengths of light red, blue, used to cover the plant photosynthesis required wavelength range.

Using the data of general plant lamp general proportion of red and blue lights chromatography between 5:1 ~ 10:1 advisable, usually 7 ~ 9:1 the proportion of optional,

Using led plant growth light on plants, generally about blade height of 30 to 50 cm distance, there is need to actually give different light intensity depending on the species of plant, adjust the height generally regarded as the most convenient way of brightness adjustment.