Those cfl bulbs are just really kind of weak in intensity and you ll need an awful lot more of them to cover much of an area over 2 x2.
5000k led bulb for growing.
Go any lower to 1000k and the blue light will drop below what is good for plants.
I wouldn t use 4000k or 5000k bulbs for veg and especially not for flowering.
Leds being monochromatic sources and being available in wide range of pure colors are the only light sources that can be tailored to give right spectrum do wonderful things for plant growth.
Different types of grow lights while there are a number of different kinds of grow lights out there broadly speaking you can categorize all of them under the following three categories.
Even if you had three 800 lumen bulbs side by side i d be concerned that the total irradiance would be too little to keep the plants happy.
Grow lights are a little more expensive when compared to regular led light bulbs but that is because they are meant for this specific purpose of growing plants.
Led grow lights depot 356 739 views 12 51 purchasing led or fluorescent grow lights kelvin lumen scales.
During mid day hours direct sunlight will have a color temperature over 5000k and daylight including the entire blue sky will have a color temperature closer to 6500k.
2000 3000 lumens per bulb in a shop light fixture is the output needed to keep seedlings from becoming leggy and stressed from too little light.
I like the 6500 k but anything above 5000k will work pretty well.
Plants grow quicker and healthier than under other.
About 90 of the light and electricity used by those bulbs will be wasted because it s not the spectrum of light the plants needs.
5000 6500k is suppoed to be the ideal temperature.
As such you will find that the color appearance of a 4000k led bulb is similar to natural sunlight during morning or afternoon hours.
The color temperature of daylight can vary depending on time of day part of year and cloudiness.
5200 6000k is the color temperature used mostly in photography and film for true white light sunlight at noon.
These leds are ideal for all phases of plant growth including budding and flowering and.
Starting vegetables seeds indoors duration.
Even though red and infrared are mostly left out it s a decent growth spectrum.
Overall you ll just be running up your electric bill for the most minimal results from your plants.
Feit electric led grow lights have a long life span of 25 000 hours.
Some people will use those 4 bulb 4 fixtures and put 2 or 3 6500k and 1 or 2 4500 k fluorescent bulbs in them for a broader spectrum.