LED Grow Light Knowledges:
1. What is LED grow light?
A kind of LED the light of the sun substitute components, special promote plant photosynthesis, create a favorable for plant growth of the environment and the design of the light with specific spectral wavelength of special lights.
2. How to understand the light wavelength?
Red: 630nm, 660nm,
Blue: 430-440nm, 460-470nm
UV: 380nm/410nm (need extra fee)
IR: 730NM/850nm (need extra fee)
2700-3000K preferably for flowering.
6000-6500k degrees kelvin is predominantly, bluish-white light and this is the best kind of light and kelvin temperature for vegetative growth.
During veg you want more towards the daylight/daylight+blue end and during flower you're gonna be digging more towards the red end of the spectrum.
Every user's wavelength ratio, LED lamp beads ratio, and arrangement diagram can be customized, add UV,IR wavelength also acceptable. If you need recommendation or want to customize for your plant from Shenzhen Ledeast Lighting Co.,Ltd, please kindly advise.
Q1: LED Grow Lights VS HID Grow Lights:
A: Compare to HPS/MH lamp, LED grow lights are Energy-saving, Zero heat emiting, No expensive accesories, long life time, higher effeciency, Simple using, Environmental-friendly.
--Energy Saving- LED saves a 60-80% electricity bill than HID lamp.
--Zero heat emiting- LED is cold light source with built in fans for LED chip cool and run well, don't burn your plants.
--No expensive accesories- don't need ballasts, reflectors, air-conditioner which cost your more.
--Long life time- over 50,000hours, don't need replace bulbs or other parts.
--High effeciency- LED only emit useful wavelength for plants growing, over 90% or better effeciency than HID's 35% on output energy.
--Simple using- Plug and play, no need installation.
--Enviromental friendly- don't contain any harmful substance,green hi-technology for our earth.
Q2: What is the wavelength suit to my plants?
A: Forms of electromagnetic radiation like radio waves, light waves or infrared (heat) waves make characteristic patterns as they travel through space. Each wave has a certain shape and length. The distance between peaks (high points) is called wavelength. Each shade of light along the visible spectrumcan be measured in nanometers (nm) that range from 380nm to about 780nm, from blue/violet to red. spectral region influence the Plant Physiology:
280 ~ 315nm The shape and the physiological processes of little effect.
315 ~ 400nnm Chlorophyll absorbs less, influence light cycle effect, prevent stem elongation.
400 ~ 520nm (Blue) Chlorophyll and carotenoids absorb the largest percentage, the biggest influence on photosynthesis.
520 ~ 610nm Pigment absorption rate is not high.
610 ~ 720nm (Red) Chlorophyll absorption rate is low, for photosynthesis and light cycle effect have notable effect.
720 ~ 1000nm Absorption rate is low, stimulate cell extended, influencing flowering and seed germination.
In a word, the red, blue, orange is main wavelength/color energy for plants' photosynthesis.
More information or questions, please check LED VS HPS (MH) Lights or contact me for help if you like.
Q3: Why actual working power is less than chip power? Only 60%-70%.
A: To protect the LED chip, we turn down the current to drive the 3W LED chip at about 1.8-2.1W. If we take full use the 3W power, the brightness will only increase 10%, and negatively, the led working temperature will be much higher, which will reduce the life span.
Q4: Does this light emit much heat?
A: LEDs are the most efficient lights in existence today. They produce so little heat; you can actually let the plant touch the light (although it's not recommended as you will reduce the size of your growing area). Any heat produced by the unit is absorbed by the heat sink and disippated by the fans in the rear of the light.